US 12,332,487 B2
Optical module
Honghao Zhang, Shandong (CN); Xujie Huang, Shandong (CN); Shuhua Ye, Shandong (CN); Bin Wang, Shandong (CN); Jiaao Zhang, Shandong (CN); Xueru Liu, Shandong (CN); Qinhao Fu, Shandong (CN); Yifan Xie, Shandong (CN); Yi Tang, Shandong (CN); and Benzheng Dong, Shandong (CN)
Assigned to HISENSE BROADBAND MULTIMEDIA TECHNOLOGIES CO., LTD., Qingdao (CN)
Filed by HISENSE BROADBAND MULTIMEDIA TECHNOLOGIES CO., LTD., Shandong (CN)
Filed on Mar. 16, 2023, as Appl. No. 18/122,560.
Application 18/122,560 is a continuation in part of application No. PCT/CN2020/135775, filed on Dec. 11, 2020.
Claims priority of application No. 202010988200.8 (CN), filed on Sep. 18, 2020; application No. 202010988545.3 (CN), filed on Sep. 18, 2020; application No. 202010988607.0 (CN), filed on Sep. 18, 2020; and application No. 202010990182.7 (CN), filed on Sep. 18, 2020.
Prior Publication US 2023/0258883 A1, Aug. 17, 2023
Int. Cl. G02B 6/42 (2006.01); G02B 6/27 (2006.01); G02B 6/293 (2006.01); G02B 6/43 (2006.01); H04J 14/02 (2006.01)
CPC G02B 6/4215 (2013.01) [G02B 6/2773 (2013.01); G02B 6/2938 (2013.01); G02B 6/423 (2013.01); G02B 6/426 (2013.01); G02B 6/43 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical module, comprising:
a circuit board;
a light emitting assembly electrically connected with the circuit board, and the light emitting assembly including:
a light emitting housing;
a light emitting cover plate covered on the light emitting housing and defining a light emitting cavity with the light emitting housing;
a plurality of lasers disposed in the light emitting cavity, and configured to emit a plurality of optical signals with different wavelengths;
a plurality of wavelength division multiplexers disposed in the light emitting cavity and corresponding to the plurality of lasers; the plurality of wavelength division multiplexers being configured to multiplex the plurality of optical signals into a plurality of composite optical signals; the plurality of wavelength division multiplexers including a first part of the plurality of wavelength division multiplexers and a second part of the plurality of wavelength division multiplexers; and
a lens group disposed in the light emitting cavity, and configured to multiplex the plurality of composite optical signals into a merge composite optical signal; the lens group including:
a first lens disposed on light-exit paths of the first part of the plurality of wavelength division multiplexers;
a second lens disposed on a light-exit path of the first lens; and
a third lens disposed on light-exit paths of the second part of the plurality of wavelength division multiplexers;
a fiber optic adapter connected with the light emitting housing, and configured to receive and transmit the merge composite optical signal; and
a light receiving assembly electrically connected with the circuit board and configured to receive optical signals from an outside of the optical module; the light receiving assembly and the light emitting assembly being arranged in a stack;
wherein the plurality of composite optical signals include a first part of the plurality of composite optical signals and a second part of the plurality of composite optical signals; the second lens is configured to transmit the first part of the plurality of composite optical signals exited from the first lens, reflect the second part of the plurality of composite optical signals exited from the third lens to the first lens, and transmit the second part of the plurality of composite optical signals, reflected by the first lens to adjust angles incident on the second lens, so as to multiplex the plurality of composite optical signals into the merge composite optical signal.