CN205263349U

CN205263349U - Syntropy type tail optical fiber formula optical device

Info

Publication number: CN205263349U
Application number: CN201520934317.2U
Authority: CN
Inventors: 王苗庆; 傅家奇
Original assignee: SHAOXING ZKTEL EQUIPMENT Co Ltd
Current assignee: SHAOXING ZKTEL EQUIPMENT Co Ltd
Priority date: 2015-11-23
Filing date: 2015-11-23
Publication date: 2016-05-25
Anticipated expiration: 2025-11-23

Abstract

The utility model discloses a syntropy type tail optical fiber formula optical device, including tail optical fiber, optical emitter, optical receiver, first light filter, second light filter and third light filter, optical emitter and optical receiver lie in the same one side of tail optical fiber, and the tail end of optical emitter and optical receiver all is equipped with the pin of welding usefulness, first light filter is the level setting, second light filter and third light filter are 45 slopes and set up, and the incline direction is unanimous, on down light that the tail optical fiber sent incides earlier the second light filter, and after the total reflection of second light filter, vertical incidence to first light filter, first light filter carries out the band -pass filter to the light signal of incident, reachs optical receiver department at last and carries out photoelectric conversion, go upward the light signal and through optical emitter lightning conversion back, incide the third light filter, go upward light and get into the tail optical fiber in proper order after third light filter total reflection and the refraction of second light filter. Characteristics such as above -mentioned syntropy type tail optical fiber formula optical device has that the welding is convenient, dependable performance and optic system are succinct.

Description

One is type tail-fiber type optical device in the same way

Technical field

The utility model relates to one type tail-fiber type optical device in the same way, belongs to field of photoelectric technology.

Background technology

The fast development of optical fiber technology, the particularly development of PON technology, consumption for the optical fiber cat ONU of client is increasing, and operator is more and more higher for the cost requirement of ONU, much be at present the user of optical fiber cat, all, by the original optical module that directly uses, make into optical device directly be made on the plank of optical fiber cat, carry out cost control, the origin of Here it is BOSAOnBOARD. Traditional optical device BOSA, as shown in Figure 1, in an optical device, use two optical filter 1-1 to carry out the structure of light path, and LD(optical transmitting set) 1-2 and PD(optical receiver) 1-3 is in two different directions, both differ 90 degree, in the time that above-mentioned optical device is soldered on PCBA plate, need to the pin of LD end manually be broken curved to pad place, waste time and energy, increase considerably cost of labor. Meanwhile, because the pin of transmitting terminal is long, affect signal transmission, can be deteriorated to some extent to performances such as eye patterns.

In view of this, the inventor studies this, develops specially one type tail-fiber type optical device in the same way, and this case produces thus.

Utility model content

The purpose of this utility model is to provide one type tail-fiber type optical device in the same way, has the features such as convenient welding, dependable performance and light path system be succinct.

To achieve these goals, solution of the present utility model is:

One is type tail-fiber type optical device in the same way, comprise tail optical fiber, optical transmitting set, optical receiver, and be arranged on the first optical filter, the second optical filter and the 3rd optical filter in light path, described optical transmitting set and optical receiver are positioned at tail optical fiber the same side, and the tail end of optical transmitting set and optical receiver is equipped with the pin of welding use; Described the first optical filter is for being horizontally disposed with, described the second optical filter and the 3rd optical filter are 45 ° and are obliquely installed, and incline direction is consistent, the descending light that tail optical fiber sends first incides on the second optical filter, after the second optical filter total reflection, impinge perpendicularly on the first optical filter, the first optical filter carries out bandpass filtering to the optical signal of incident, finally arrives optical receiver place and carries out opto-electronic conversion; Uplink optical signal, after the conversion of optical transmitting set electric light, incides the 3rd optical filter, and up light enters tail optical fiber successively after the 3rd optical filter total reflection and the refraction of the second optical filter.

As preferably, described optical transmitting set, optical receiver, the first optical filter, the second optical filter and the 3rd optical filter are encapsulated in same pedestal, pedestal is provided with the perforate of inserting for tail optical fiber, parallel with the first optical filter from the light of tail optical fiber transmitting/incident, be 45 ° of angles with the second optical filter, the 3rd optical filter.

As preferably, described the first optical filter transmission peak wavelength: 1480-1550nm, reflection wavelength: 1250-1370nm&1550-1600nm; Second optical filter transmission peak wavelength: 1250～1360nm, reflection wavelength: 1480～1600nm; The 3rd optical filter transmission peak wavelength: 1500 ~ 1600nm, reflection wavelength: 1260 ~ 1360nm.

The tail-fiber type of type in the same way optical device described in the utility model in use, because optical transmitting set and optical receiver tail end pin are positioned at same direction, can directly optical device be welded to PCBA plate, without breaking again this waste motion of pin, significantly shorten the set-up time, and batch production has been played to the object of process optimization; Simultaneously, because optical device is directly soldered on PCBA plate, what therefore optical transmitting set and optical receiver pin can be cut is very short, the meeting that affects that transmitting eye pattern and high speed signal are caused is broken after bend pipe pin welding again and is greatly reduced than before, particularly transmit and have very large optimization function for 10G and the above product signal of 10G; In addition, optical transmitting set, optical receiver, the first optical filter, the second optical filter and the 3rd optical filter are encapsulated in same pedestal, modularized design, can make to install more convenient, location is more accurate, further ensures the properties of optical device.

Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.

Brief description of the drawings

Fig. 1 is the optical device index path of prior art;

Fig. 2 is the optical device index path of the present embodiment.

Detailed description of the invention

As shown in Figure 2, the present embodiment is taking PONONU tail-fiber type optical device as example, described tail-fiber type optical device, comprise tail optical fiber 1, optical transmitting set 2, optical receiver 3, and be arranged on the first optical filter 4 in light path, the second optical filter 5 and the 3rd optical filter 6, wherein, described optical transmitting set 2, optical receiver 3, the first optical filter 4, the second optical filter 5 and the 3rd optical filter 6 are encapsulated in same pedestal 7, pedestal 7 is provided with the perforate of inserting for tail optical fiber 1, described the first optical filter 4 is for being horizontally disposed with, described the second optical filter 5 and the 3rd optical filter 6 are 45 ° and are obliquely installed, and incline direction is consistent, that is: parallel with the first optical filter 4 from the light of launch/incident of tail optical fiber 1, with the second optical filter 5, the 3rd optical filter 6 is 45 ° of angles. described optical transmitting set 2 and optical receiver 3 are arranged side by side in tail optical fiber 1 the same side, and the tail end of optical transmitting set 2 and optical receiver 3 is equipped with the pin 8 of welding use.

In the present embodiment, the specification of described the first optical filter 4, the second optical filter 5 and the 3rd optical filter 6 is as shown in table 1,

Table 1

Above-mentioned tail-fiber type optical device light path principle: the descending light of 1490nm that tail optical fiber 1 sends first incides on the second optical filter 5, after the second optical filter 5 total reflections, impinge perpendicularly on the first optical filter 4, the first optical filter 4 carries out bandpass filtering to the optical signal of incident, finally arrives optical receiver 3 places and carries out opto-electronic conversion; Uplink optical signal, after optical transmitting set 2 electric light conversions, incides the 3rd optical filter 6, and the up light of 1310nm enters tail optical fiber 1 successively after the 3rd filter plate 6 total reflections and the second filter plate 5 refractions.

Novel tail-fiber type optical device described in the utility model in use, because optical transmitting set 2 and optical receiver tail 3 end pins 8 are positioned at same direction, can directly optical device be welded to PCBA plate 9, without breaking again this waste motion of pin, significantly shorten the set-up time, and batch production has been played to the object of process optimization; Simultaneously, because optical device is directly soldered on PCBA plate 9, what therefore optical transmitting set 2 and optical receiver 3 pins 8 can be cut is very short, the meeting that affects that transmitting eye pattern and high speed signal are caused is broken after bend pipe pin welding again and is greatly reduced than before, particularly transmit and have very large optimization function for 10G and the above product signal of 10G; In addition, optical transmitting set 2, optical receiver 3, the first optical filter 4, the second optical filter 5 and the 3rd optical filter 6 are encapsulated in same pedestal 7, modularized design, can make to install more convenient, location is more accurate, further ensures the properties of optical device.

Above-described embodiment and graphic and non-limiting product form of the present utility model and style, suitable variation or modification that any person of an ordinary skill in the technical field does it, all should be considered as not departing from patent category of the present utility model.

Claims

1. a type tail-fiber type optical device in the same way, it is characterized in that: comprise tail optical fiber, optical transmitting set, optical receiver, and be arranged on the first optical filter, the second optical filter and the 3rd optical filter in light path, described optical transmitting set and optical receiver are positioned at tail optical fiber the same side, and the tail end of optical transmitting set and optical receiver is equipped with the pin of welding use; Described the first optical filter is for being horizontally disposed with, described the second optical filter and the 3rd optical filter are 45 ° and are obliquely installed, and incline direction is consistent, the descending light that tail optical fiber sends first incides on the second optical filter, after the second optical filter total reflection, impinge perpendicularly on the first optical filter, the first optical filter carries out bandpass filtering to the optical signal of incident, finally arrives optical receiver place and carries out opto-electronic conversion; Uplink optical signal, after the conversion of optical transmitting set electric light, incides the 3rd optical filter, and up light enters tail optical fiber successively after the 3rd optical filter total reflection and the refraction of the second optical filter.

2. one as claimed in claim 1 type tail-fiber type optical device in the same way, it is characterized in that: described optical transmitting set, optical receiver, the first optical filter, the second optical filter and the 3rd optical filter are encapsulated in same pedestal, pedestal is provided with the perforate of inserting for tail optical fiber, parallel with the first optical filter from the light of tail optical fiber transmitting/incident, be 45 ° of angles with the second optical filter, the 3rd optical filter.

3. one as claimed in claim 1 type tail-fiber type optical device in the same way, is characterized in that: described the first optical filter transmission peak wavelength: 1480-1550nm, reflection wavelength: 1250-1370nm&1550-1600nm; Second optical filter transmission peak wavelength: 1250～1360nm, reflection wavelength: 1480～1600nm; The 3rd optical filter transmission peak wavelength: 1500 ~ 1600nm, reflection wavelength: 1260 ~ 1360nm.