CN201034726Y - Optical power gauge - Google Patents
Optical power gauge Download PDFInfo
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- CN201034726Y CN201034726Y CNU2007200069303U CN200720006930U CN201034726Y CN 201034726 Y CN201034726 Y CN 201034726Y CN U2007200069303 U CNU2007200069303 U CN U2007200069303U CN 200720006930 U CN200720006930 U CN 200720006930U CN 201034726 Y CN201034726 Y CN 201034726Y
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- filter plate
- photo
- detector
- power meter
- substrate
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Abstract
The utility model provides an integrated form multi-channel optical power meter, the basic component thereof comprising a basal, a fiber collimator, a set of filter clogging plates and a set of photodetectors. The light flux surfaces of all the filter clogging plates are parallel or coincident with each other; each photodetector in the set of photodetectors is directly arranged in each filter clogging plate, power monitoring the optical signal in the channel. The integrated form multi-channel optical power meter realizes the wavelength division multiplexing function through the adoption of the free-space method, characterized by the advantages of small volume, low cost and low insertion loss, thus is broadly applied in the fields of optical fiber communication, optical fiber sensing, IPTV (interactive personal TV) and CATV (cable television), etc.
Description
[technical field]
The utility model relates to a kind of light power meter, and particularly a kind of integrated form multichannel light power meter belongs to optical-fibre communications field.
[background technology]
Along with the rise of global information industry, being widely used of optical-fibre communications, development is the development trend in optical communication field to the photoelectric device of portable high information quantity.
Tradition tandem type light power meter as shown in Figure 1, is traditional tandem type light power meter basic cell structure synoptic diagram.Its elementary cell is by double-fiber collimator 1, filter plate 2, photo-detector 3 and encapsulating shell 4 are formed, flashlight 5 is from optical fiber collimator 1 incident end incident, behind collimation, be directly incident on filter plate 2, its reflected light 6 returns from the exit end (end of outgoing shown in the figure and incident end are same end) of optical fiber collimator 1, its transmitted light 7 usefulness photo-detectors 3 are monitored, and promptly finish the optical power monitoring to single wavelength.Then must organize elementary cell more and cascade up if will realize the measuring light power of multi-wavelength, thereby cause complex structure, the cost height, the insertion loss is big.
For addressing the above problem, must do necessary improvement to traditional tandem type light power meter, thereby remedy the deficiency of traditional tandem type light power meter.
[summary of the invention]
The purpose of this utility model is to provide a kind of light power meter, adopts integrated form multichannel light power meter, has that volume is little, cost is low, and characteristics such as practicality height have breakthrough meaning in the measuring light power field.
The utility model is that this will realize, a kind of light power meter, its elementary cell comprise a substrate, an optical fiber collimator, also comprise a filter plate group and a photo-detector group, described filter plate group comprises more than one filter plate, and the logical light face of all filter plates is parallel to each other or overlaps; Described photo-detector group comprises more than one photo-detector, and each photo-detector directly places after each filter plate.
The incident angle that incides the flashlight on each filter plate in the described filter plate group is θ, wherein 8 °≤θ≤15 °.。
It also comprises a substrate, and each filter plate in described optical fiber collimator, the filter plate group, each photo-detector in the photo-detector group directly are bonded in the substrate with cementing agent, or adopts the mode that increases the glass pad to be bonded in the substrate indirectly.
The utility model adopts above-mentioned structure, structure is in the past compared has following advantage: propose a kind of integrated form multichannel light power meter, it is to adopt the mode of free space to realize the function of wavelength-division multiplex, flashlight through filter plate is directly monitored with photo-detector, make total system simple in structure, it is low to have compact conformation, miniaturization, insertion loss, characteristics such as cost is low, and practical and be widely used in optical fiber communication, Fibre Optical Sensor, IPTV (IPTV) and CATV fields such as (CATV (cable television)).
[description of drawings]
In conjunction with the embodiments the utility model is further described with reference to the accompanying drawings.
Fig. 1 tradition tandem type light power meter basic cell structure synoptic diagram.
Fig. 2 integrated form eight passage light power meter basic cell structure synoptic diagram.
[embodiment]
See also shown in Figure 2ly, Fig. 2 is the basic cell structure figure of integrated form eight passage light power meters.Specifically constitute by optical fiber collimator 1, filter plate group 20, photo-detector group 30 and substrate 7.Adopting the WDM filter plate in the present embodiment is that the optical wavelength-division multiplex filter plate is formed filter plate group 20.Optical fiber collimator 1, filter plate group 20 and photo-detector group 30 can directly be bonded in the substrate 7 with cementing agent, also can adopt the mode that increases the glass pad to be bonded in indirectly in the substrate 7.
Its technology and principle: optical fiber collimator 1 is bonded in the substrate 7 by bonding agent, regulate the position of first filter plate 21 in the filter set 20, make that the incident angle of flashlight 50 on first filter plate 21 behind the collimation is θ, determine with cementing agent it to be fixed behind the position.Filter set 20 is divided into two groups, uses the cementing agent secured in parallel successively in substrate 7, its objective is that the logical light face that makes filter plate group 20 all filter plates is parallel to each other or overlaps, guarantee that the incident angle of the incoming signal light on each M filter plate equates, be θ.In each filter plate back, each photo-detector in the photo-detector group 30 is bonded in respectively in the substrate 7 with cementing agent, and shine with purple light, bonding agent is solidified, finish and make up eight passage WDM beam splitting system and optical power monitoring systems, its light path as shown in Figure 2, flashlight is behind collimating apparatus 1 collimation, incide on the filter plate successively with identical incident angle θ, the transmitted light of each filter plate is monitored by corresponding photo-detector, the i.e. optical power value of each wavelength as can be known, thus realize monitoring to multi-wavelength light power.
Claims (3)
1. light power meter, its elementary cell comprises a substrate, an optical fiber collimator, it is characterized in that: also comprise a filter plate group and a photo-detector group, described filter plate group comprises more than one filter plate, and the logical light face of all filter plates is parallel to each other or overlaps, described photo-detector group comprises more than one photo-detector, and each photo-detector directly places after each filter plate.
2. a kind of light power meter according to claim 1 is characterized in that: the incident angle that incides the flashlight on each filter plate in the described filter plate group is θ, wherein 8 °≤θ≤15 °.
3. a kind of light power meter according to claim 1, it is characterized in that: it also comprises a substrate, each filter plate in described optical fiber collimator, the filter plate group, each photo-detector in the photo-detector group directly are bonded in the substrate with cementing agent, or adopt the mode that increases the glass pad to be bonded in the substrate indirectly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200069303U CN201034726Y (en) | 2007-04-28 | 2007-04-28 | Optical power gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200069303U CN201034726Y (en) | 2007-04-28 | 2007-04-28 | Optical power gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201034726Y true CN201034726Y (en) | 2008-03-12 |
Family
ID=39195617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200069303U Expired - Lifetime CN201034726Y (en) | 2007-04-28 | 2007-04-28 | Optical power gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201034726Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411668A (en) * | 2013-07-30 | 2013-11-27 | 武汉电信器件有限公司 | Optical power meter based on LAN-WDM wave band |
| CN114279559A (en) * | 2021-12-27 | 2022-04-05 | 钇芯光子技术(深圳)有限公司 | Multi-channel optical transmission integrated device and monitoring method thereof |
-
2007
- 2007-04-28 CN CNU2007200069303U patent/CN201034726Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411668A (en) * | 2013-07-30 | 2013-11-27 | 武汉电信器件有限公司 | Optical power meter based on LAN-WDM wave band |
| CN114279559A (en) * | 2021-12-27 | 2022-04-05 | 钇芯光子技术(深圳)有限公司 | Multi-channel optical transmission integrated device and monitoring method thereof |
| CN114279559B (en) * | 2021-12-27 | 2024-02-20 | 钇芯光子技术(深圳)有限公司 | Multi-channel optical transmission integrated device and monitoring method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080312 |