Title:
LASER LIGHT EMITTING POWER MONITORING SYSTEM AND MONITORING METHOD, AND COLLIMATING LENS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/205689
Kind Code:
A1
Abstract:
A laser (2) light emitting power monitoring system and monitoring method, and a collimating lens therefor, relating to the field of optical communications. The collimating lens comprises a lens body (1). The lens body (1) comprises: a light incident surface (11) allowing for input of divergent light beams; a first light emergent surface (12) allowing for output of collimated light beams; a second light emergent surface (14); and a light-reflecting surface (13) for reflecting a certain proportion of light beams to the second light emergent surface (14) to be outputted. The laser (2) light emitting power monitoring system comprises: the laser (2); the collimating lens; and a photoelectric conversion chip (3); the laser (2) is optically connected to the light incident surface (11) of the collimating lens, and the photoelectric conversion chip (3) is optically connected to the second light emergent surface (14) of the collimating lens. The laser (2) light emitting power monitoring method uses the collimating lens to split light to the photoelectric conversion chip (3), thereby realizing monitoring of the laser (2) light-emitting power. Realization of low-cost and miniaturization of a light emitting unit is facilitated.
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Inventors:
WANG HAO (CN)
QIN HAITANG (CN)
QIN HAITANG (CN)
Application Number:
PCT/CN2021/107552
Publication Date:
October 06, 2022
Filing Date:
July 21, 2021
Export Citation:
Assignee:
HANGZHOU MO LINK TECH LTD (CN)
International Classes:
H01S5/00; G02B3/00; G02B6/42; G02B17/08; G02B27/10; G02B27/14
Foreign References:
| CN113131330A | 2021-07-16 | |||
| CN109407234A | 2019-03-01 | |||
| CN1761900A | 2006-04-19 | |||
| CN109708623A | 2019-05-03 | |||
| CN108027482A | 2018-05-11 | |||
| US20020054433A1 | 2002-05-09 |
Attorney, Agent or Firm:
SHENZHEN H&D IP AGENT CO., LTD (CN)
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