TWM654388U - Photoelectric converter and fiber optic transceiver module - Google Patents

Abstract

The novel invention provides a photoelectric converter suitable for being connected to another photoelectric converter via an optical fiber for cooperative function. The photoelectric converter includes a housing, a plurality of photoelectric elements and a plurality of optical elements. The housing is formed with a light transceiver port and a plurality of electrical transceiver ports. The photoelectric elements are arranged in the housing and correspond to the electrical transceiver ports. Any of the photoelectric elements is a photosensitive diode or a laser diode, wherein the number of photosensitive diodes corresponds to the number of laser diodes in the above-mentioned other photoelectric converter, and the number of laser diodes corresponds to the number of photosensitive diodes in the above-mentioned other photoelectric converter. The optical elements are arranged in the housing at intervals and are suitable for decomposing an incident light emitted from the light transceiver port into a fixed-wavelength light emitted to the photosensitive diode, or for synthesizing the fixed-wavelength light emitted by the laser diode into an outgoing light emitted through the light transceiver port. In addition, the novel invention also provides an optical fiber transceiver module including the above-mentioned optoelectronic converter.

Description

Photoelectric converter and optical fiber transceiver module

This novel invention provides an optoelectronic converter and an optical fiber transceiver module, and in particular, an optoelectronic converter and an optical fiber transceiver module suitable for decomposing an optical fiber optical signal into at least one electrical signal, or converting at least one electrical signal into an optical fiber optical signal.

Fiber optic cable is a widely used optical communication cable for high-speed signal transmission. Generally speaking, fiber optic cable includes optical fiber and coating, where the optical fiber is coated inside the coating. The optical signal input from one end of the optical fiber can be transmitted to the other end through the optical fiber. Compared with cable transmission, it has a very small loss rate during the entire transmission process. Therefore, it is often used as a long-distance signal transmission medium.

Currently, most of the hot-pluggable fiber optic transceiver modules (SFP+) on the market convert the optical signal of the fiber optic into an electrical signal, or convert the electrical signal of the device into an optical signal that can be transmitted by the fiber optic cable, thereby receiving or sending the signal to be transmitted through the fiber optic cable. However, since most fiber optic transceiver modules only have one receiving end and one transmitting end, when the connection between devices requires multiple sets of different signals (for example, the display needs to send and receive DP signals and HDMI signals at the same time), special electronic components (such as ASIC or FPGA) are required to aggregate the signals into fewer electrical signals before they can be transmitted using the hot-pluggable (SFP+) fiber optic transceiver modules on the market.

The creator then devoted all his efforts to research and developed an optoelectronic converter and optical fiber transceiver module that can convert multiple electrical signals at the transmission end into light and then integrate them into a single channel, or decompose the integrated single-channel light and restore it to the original multiple electrical signals at the receiving end, in order to overcome the limitation that the signals generally need to be integrated into a single-channel electrical signal through special electronic components (such as ASIC or FPGA) before they can be transmitted using the hot-swappable (SFP+) optical fiber transceiver module on the market.

The novel invention provides a photoelectric converter suitable for being connected to another photoelectric converter via an optical fiber for cooperative function. The photoelectric converter includes a housing, a plurality of photoelectric elements and a plurality of optical elements. The housing is formed with a light transceiver port and a plurality of electrical transceiver ports. The photoelectric elements are arranged in the housing and correspond to the electrical transceiver ports. Any of these photoelectric elements is a photodiode or a laser diode, wherein the number of photodiodes corresponds to the number of laser diodes in the above-mentioned other photoelectric converter, and the number of laser diodes corresponds to the number of photodiodes in the above-mentioned other photoelectric converter. The optical elements are arranged in the housing at intervals and are suitable for decomposing an incident light from the light transceiver port into a fixed-wavelength light directed toward the photodiode, or for synthesizing the fixed-wavelength light emitted by the laser diode into an outgoing light emitted through the light transceiver port.

In one embodiment, there are multiple photosensitive diodes in the above-mentioned photoelectric element, and the fixed-wavelength lights directed toward the photosensitive diodes have different wavelengths.

In one embodiment, the wavelength of the fixed-wavelength light directed toward the photodiode includes 970 nanometers and 1000 nanometers.

In one embodiment, there are multiple laser diodes in the above-mentioned photoelectric element, and the fixed-wavelength lights emitted by these laser diodes have different wavelengths.

In one embodiment, the wavelength of the fixed-wavelength light emitted by the laser diode includes 970 nanometers and 1000 nanometers.

In one embodiment, the optoelectronic converter further includes a circuit board, and the circuit board is electrically connected to the electrical transceiver port and the optoelectronic element.

In one embodiment, the above-mentioned electrical transceiver port is suitable for connecting to an HDMI interface, a DP interface, a PCI-E interface, an SDI interface, a USB interface or a CXP interface.

In addition, the novel invention also provides an optical fiber transceiver module, including one of the above-mentioned photoelectric converters, another of the above-mentioned photoelectric converters, and an optical fiber, and the optical fiber is connected between the two photoelectric converters.

Thus, the newly invented optical fiber transceiver module can decompose the integrated light transmitted by the laser diode of another photoelectric converter into multiple electrical signals through the photodiode and optical element of the photoelectric converter, and transmit them to the receiving end, or convert multiple electrical signals into light through the laser diode and optical element, and then integrate them into a single channel and emit them and receive them by the photodiode of another photoelectric converter, thereby overcoming the limitations of the optical fiber modules currently on the market.

In order to make the above features and advantages of this novel creation more clearly understood, the following is a specific implementation example and a detailed description with the attached diagrams.

1: Fiber optic transceiver module

10: The first optoelectronic hot-swap module

100: The first photoelectric converter

110: Shell

116: Optical transceiver port

118: Telephone transceiver port

120: Optoelectronic components

130:Optical components

140: Circuit board

12: Outer cover

14: Optical channel

20: Second optoelectronic hot-swap module

200: Second photoelectric converter

210: Shell

216: Optical transceiver port

218: Telephone transceiver port

220: Optoelectronic components

230:Optical components

240: Circuit board

30: Optical fiber

L ₁ : First beam

L ₂ : Second beam

L ₁₁ ~L ₂₅ : Fixed wavelength light

Figure 1 is a three-dimensional schematic diagram of an embodiment of the optical fiber transceiver module of this novel invention.

Figure 2 is a three-dimensional schematic diagram of the first optoelectronic hot-swap module in Figure 1.

Figure 3 is a three-dimensional schematic diagram of an embodiment of the first photoelectric converter of the novel invention.

FIG4 is a schematic side cross-sectional view of the first photoelectric converter in FIG3.

Figure 5 is a three-dimensional schematic diagram of an embodiment of the second photoelectric converter of the novel invention.

FIG6 is a schematic side cross-sectional view of the second photoelectric converter in FIG5.

FIG7 is a schematic side cross-sectional view of the first photoelectric converter in FIG4 and the second photoelectric converter in FIG6 working in coordination with each other.

The aforementioned and other technical contents, features and effects of the novel creation will be clearly presented in the detailed description of the preferred embodiments with reference to the drawings below. It is worth mentioning that the directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only reference directions of the attached drawings. Therefore, the directional terms used are for explanation rather than limitation of the novel creation. In addition, in the following embodiments, the same or similar components will use the same or similar labels.

Please refer to Figure 1, which is a three-dimensional schematic diagram of an embodiment of the optical fiber transceiver module of the present invention. The optical fiber transceiver module 1 of the present embodiment is suitable for connecting the transmission end for sending signals and the receiving end for receiving signals, respectively, and may include a first optoelectronic hot-swap module 10, a second optoelectronic hot-swap module 20, and an optical fiber 30, wherein the optical fiber 30 is connected between the first optoelectronic converter of the first optoelectronic hot-swap module 10 and the second optoelectronic converter of the second optoelectronic hot-swap module 20, and is used to transmit the optical signal formed by the converted signals sent by two different devices.

Please refer to FIG. 2 , which is a three-dimensional schematic diagram of the first optoelectronic hot-swap module in FIG. 1 . In detail, the first optoelectronic hot-swap module 10 may include an outer cover 12, one end of the outer cover 12 is formed with an optical channel 14 for providing optical fiber plugging and unplugging, and the other end of the outer cover 12 has an interface port that can be connected to a transmission end device or a receiving end device, wherein the transmission end device and the receiving end device can be computing devices such as personal computers, industrial computers or servers, or audio-visual devices such as speakers, display screens or game consoles, and the interface port can include a high definition multimedia interface (HDMI) interface, a display port (DP) interface, an embedded display port (eDP) interface, a peripheral component interconnect express (PCI-E) interface, a serial digital interface (SDI), a universal serial bus (Universal Serial Bus) interface, and a HDMI interface. The present invention is not limited to the USB (USB) interface or CXP (CoaXPress) interface. On the other hand, the outer cover 12 is formed with a space or slot for accommodating the first photoelectric converter. Through such a configuration, the user can configure the first photoelectric converter in the corresponding space or slot and fix the first photoelectric converter through fixing elements such as screws or elastic arms. Since the size and shape of the first photoelectric hot-swappable module 10 are similar to those of the generally specified hot-swappable optical fiber transceiver module, the user can manually adjust the components and corresponding functions of the optical fiber transceiver module 1 according to actual needs, so that the same module can be used with different internal components to correspond to various different terminal devices.

Please refer to Figures 3 and 4, wherein Figure 3 is a three-dimensional schematic diagram of an embodiment of the first photoelectric converter of the present invention, and Figure 4 is a side cross-sectional schematic diagram of the first photoelectric converter in Figure 3. The first photoelectric converter 100 of the present embodiment includes a housing 110, a plurality of photoelectric elements 120, and a plurality of optical elements 130. The housing 110 is formed with an optical transceiver port 116 and a plurality of electrical transceiver ports 118; the photoelectric element 120 is disposed in the housing 110 and corresponds to the electrical transceiver port 118; the optical elements 130 are disposed in the housing 110 at intervals.

Specifically, the first photoelectric converter 100 of the present embodiment can demultiplex a single optical signal into multiple electrical signals or multiplex multiple electrical signals into a single optical signal according to the configuration of the photoelectric elements 120 and the optical elements 130 disposed inside the housing 110. As shown in FIG3 and FIG4, the number of the photoelectric elements 120 is, for example, seven and they correspond to the electrical transceiver ports 118 respectively. Each photoelectric element 120 can be a photodiode or a laser diode. In the present embodiment, the first and second photoelectric elements 120 on the left are photodiodes, and the remaining photoelectric elements 120 are laser diodes, but the present invention is not limited thereto. On the other hand, the optical element 130 is, for example, a lens or a prism, and is suitable for decomposing the incident light from the optical transceiver port 116 into a constant wavelength light directed toward the photodiode, or for synthesizing the constant wavelength light emitted by the laser diode into an outgoing light emitted through the optical transceiver port 116. When a first light beam _L1 is incident into the housing 110 from the optical transceiver port 116, it will continue to be incident on the optical element 130 and decomposed into a first constant wavelength light _L11 and a second constant wavelength light _L12 , and respectively directed toward the first and second left photoelectric elements 120, i.e., the photodiodes. In this embodiment, the normal direction of these optical elements 130 is, for example, at a 45-degree angle to the incident direction of the first light beam _L1 , and the refractive index of each optical element 130 is configured so that a portion of the first light beam _L1 is deflected toward the photodiode, while another portion of the first light beam _L1 continues to advance along the original light path direction until it reaches the last photodiode. In the present embodiment, the wavelengths of the first fixed-wavelength light _L11 and the second fixed-wavelength light _L12 are fixed and are, for example, 970 nanometers and 1000 nanometers, so as to avoid the commonly used wavelengths of general photoelectric converters and thus be distinguished from other signals to obtain better signal strength and resolution. However, in other possible embodiments, the wavelength of the incident fixed-wavelength light can also be 820 nanometers, 850 nanometers, 880 nanometers, 910 nanometers or 940 nanometers, and the present novel creation is not limited to this.

On the other hand, the third fixed wavelength light _L21 , the fourth fixed wavelength light _L22 , the fifth fixed wavelength light _L23 , the sixth fixed wavelength light _L24 and the seventh fixed wavelength light _L25 emitted by the third to seventh photoelectric elements 120 (i.e., laser diodes) from the left first hit the optical element 130, and are respectively refracted by the optical element 130 and then synthesized into a second light beam _L2 and emitted from the optical transceiver port 116. In this embodiment, the wavelengths of the third fixed wavelength light _L21 to the seventh fixed wavelength light _L25 are fixed and are, for example, 820 nanometers, 850 nanometers, 910 nanometers, 970 nanometers and 1000 nanometers. In other words, the first photoelectric converter 100 of the present embodiment can be regarded as a two-receive five-transmit photoelectric converter, which can not only decompose the integrated light in a limited housing space, restore it into multiple electrical signals through the photodiode and transmit it to the receiving end through the electrical transceiver port 118, but also convert the multiple electrical signals input from the electrical transceiver port 118 into light through the optical element 130 and then integrate them into a single channel for emission. Through such a configuration, not only can the separated fixed-wavelength light retain a relatively large original light intensity, but also a single optical transceiver port 116 can be used to process complex multiple signals, and the advantages of fast transmission of optical signals and low attenuation are retained. In addition, in today's optical fiber transceiver modules, 970 nanometers and 1000 nanometers are less used wavelengths. Therefore, the first photoelectric converter 100 of the present embodiment is not only smaller in size, simple in optical path, and has higher decomposed fixed-wavelength light energy, but also less likely to interfere with the wavelengths used by general photoelectric converters on the market, thereby being more widely applicable to different devices and various signals.

In some possible embodiments, a groove for embedding the optoelectronic element 120 is formed in the housing 110, so that the photodiode and the laser diode can be stably embedded in the housing 110. Preferably, the first photoelectric converter 100 may also include a circuit board 140, and the electrical transceiver port 118 is electrically connected to the circuit board 140. Through such a configuration, the user does not need to additionally couple the first photoelectric converter 100 with the circuit board of the device end. The user only needs to determine the number of input signals and output signals of the device end, and can directly select the corresponding first photoelectric converter 100, which greatly improves the advantages brought by modularization.

Please refer to Figures 5 to 7, wherein Figure 5 is a three-dimensional schematic diagram of an embodiment of the second photoelectric converter of the present invention, Figure 6 is a side cross-sectional schematic diagram of the second photoelectric converter in Figure 5, and Figure 7 is a side cross-sectional schematic diagram of the photoelectric converter in Figure 4 and the second photoelectric converter in Figure 6 when they cooperate with each other. Similar to the first photoelectric converter 100, the second photoelectric converter 200 of the present embodiment includes a housing 210, a plurality of photoelectric elements 220, and a plurality of optical elements 230, wherein the housing 210 is formed with an optical transceiver port 216 and a plurality of electrical transceiver ports 218; the photoelectric element 220 is disposed in the housing 210 and corresponds to the electrical transceiver port 218; the optical elements 230 are disposed in the housing 210 at intervals.

Specifically, as shown in FIG3 and FIG5, the first photoelectric converter 100 and the second photoelectric converter 200 may be completely identical in appearance, and are suitable for working in cooperation after being directly connected through the optical fiber 30 as shown in FIG7, or are respectively arranged in the first photoelectric hot-swap module 10 and the second photoelectric hot-swap module 20 as shown in FIG1 and then connected through the optical fiber 30. Furthermore, each of the photoelectric elements 220 of the second photoelectric converter 200 is also a photosensitive diode or a laser diode, and the number of photosensitive diodes of the first photoelectric converter 100 corresponds to the number of laser diodes of the second photoelectric converter 200, and the number of laser diodes of the first photoelectric converter 100 corresponds to the number of photosensitive diodes of the second photoelectric converter 200. In the present embodiment, the second photoelectric converter 200 is taken as an example in which the second photoelectric converter 200 has seven photoelectric elements 220, and the first and second photoelectric elements 220 on the left are laser diodes, and the remaining photoelectric elements 220 are photosensitive diodes. However, the position of the photosensitive diode of the second photoelectric converter 200 relative to the housing 210 is not necessarily exactly the same as the position of the laser diode of the first photoelectric converter 100 relative to the housing 110, which is specially explained here. Thus, the first fixed wavelength light _L11 and the second fixed wavelength light _L12 emitted by the first and second left photoelectric elements 220 (i.e., laser diodes) can be integrated into the first light beam _L1 through the optical element 230 and emitted from the optical transceiver port 216, transmitted to the first photoelectric converter 100 through the optical fiber 30 and injected into the optical transceiver port 116, and then decomposed and restored into the first fixed wavelength light _L11 and the second fixed wavelength light _L12 as described above, and received by the photosensitive diode of the first photoelectric converter 100; at the same time, the third fixed wavelength light _L21 to the seventh fixed wavelength light _L25 emitted by the laser diode of the first photoelectric converter 100 will be refracted through the optical element 130 and integrated into the second light beam _L2 , emitted by the optical transceiver port 116 and transmitted by the optical fiber 30, then injected into the optical transceiver port 216 and decomposed and restored to the original fixed wavelength light through the optical element 230. In other words, the first photoelectric converter 100 with two-receive and five-transmit functions of this embodiment can cooperate with the corresponding second photoelectric converter 200 with two-transmit and five-receive functions, not only can it fully correspond to the number of signals at the device end, but also has the advantages of small size, simple optical path, and higher energy of the decomposed fixed wavelength light.

Preferably, a groove for embedding the optoelectronic element 220 may be formed in the housing 210 of the second optoelectronic converter 200, and the second optoelectronic converter 200 may also include a circuit board 240 electrically connected to the electrical transceiver port 218, thereby achieving substantially the same effect as the first optoelectronic converter 100.

The novel creation has been disclosed in the above text in the form of a preferred embodiment. However, those familiar with this technology should understand that the above embodiment is only used to describe the novel creation and should not be interpreted as limiting the scope of the novel creation. It should also be noted that all changes and substitutions equivalent to the above embodiment should be considered to be included in the scope of the novel creation. Under the premise of not generating conceptual contradictions or structural conflicts, the technical features of the above embodiments can be appropriately combined, replaced, omitted and changed. Therefore, the scope of protection of the novel creation should be based on the scope defined by the patent application.

100: The first photoelectric converter

110: Shell

116: Optical transceiver port

118: Telephone transceiver port

120: Optoelectronic components

130:Optical components

L ₁ : First beam

L ₂ : Second beam

L ₁₁ ~L ₂₅ : Fixed wavelength light

Claims (8)

A photoelectric converter is suitable for being connected to another photoelectric converter through an optical fiber for cooperative action. The photoelectric converter comprises: a housing, which is formed with an optical transceiver port and a plurality of electrical transceiver ports; a plurality of photoelectric components, which are arranged in the housing and correspond to the plurality of electrical transceiver ports, and any of the plurality of photoelectric components is a photosensitive diode or a laser diode, wherein the number of photosensitive diodes in the plurality of photoelectric components corresponds to the number of laser diodes in the other photoelectric converter. The number of electrodes in the plurality of photoelectric elements corresponds to the number of photosensitive diodes in the other photoelectric converter; and a plurality of optical elements are arranged in the housing at intervals and are suitable for decomposing an incident light emitted from the optical transceiver port into a fixed wavelength light emitted to the photosensitive diodes in the plurality of photoelectric elements, or for synthesizing the fixed wavelength light emitted by the laser diodes in the plurality of photoelectric elements into an outgoing light emitted through the optical transceiver port. The photoelectric converter as described in claim 1, wherein the photosensitive diodes in the plurality of photoelectric elements are plural, and the constant wavelength lights directed to the plurality of photosensitive diodes have different wavelengths. A photoelectric converter as described in claim 2, wherein the wavelength of the fixed-wavelength light directed to the plurality of photodiodes includes 970 nanometers and 1000 nanometers. The photoelectric converter as described in claim 1, wherein the plurality of laser diodes in the plurality of photoelectric elements are plural, and the constant wavelength lights emitted by the plurality of laser diodes have different wavelengths from each other. A photoelectric converter as described in claim 4, wherein the wavelength of the fixed-wavelength light emitted by the plurality of laser diodes includes 970 nanometers and 1000 nanometers. The photoelectric converter as described in claim 1 further includes a circuit board, and the circuit board is electrically connected to the plurality of electrical transceiver ports and the plurality of photoelectric elements. An optical-to-electrical converter as described in claim 1, wherein the plurality of electrical transceiver ports are suitable for connecting to an HDMI interface, a DP interface, a PCI-E interface, an SDI interface, a USB interface or a CXP interface. An optical fiber transceiver module, comprising: an optoelectronic converter as described in any one of claims 1 to 7; another optoelectronic converter of the optoelectronic converter as described in any one of claims 1 to 7; and an optical fiber connected between the optoelectronic converter and the other optoelectronic converter.

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