RZ-DPSK photonic integrated transmitter for space optical communications

被引:2
|
作者
Fridlander, Joseph [1 ]
Pinna, Sergio [1 ]
Rosborough, Victoria [1 ]
Estrella, Steven [1 ,2 ]
Johansson, Leif [2 ]
Klamkin, Jonathan [1 ]
机构
[1] Univ Calif Santa Barbara, Elect & Comp Engn Dept, Santa Barbara, CA 93106 USA
[2] Freedom Photon, 41 Aero Camino, Santa Barbara, CA 93117 USA
关键词
Photonic integrated circuits; Free-space optical communications; Differential phase shift keying;
D O I
10.1117/12.2287557
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
This work demonstrates the operation of a photonic integrated circuit transmitter for space optical communication utilizing an RZ-DPSK modulation format realized on an indium phosphide monolithic integration platform. It includes a widely tunable sampled grating distributed Bragg reflector laser, a semiconductor optical amplifier for amplification and burst mode operation, a dual drive Mach-Zehnder modulator (MZM) that efficiently encodes phase information, and an electro-absorption modulator RZ pulse carver. The laser tuning range is approximately 35 nm across the telecommunications C-band. The MZM DC extinction ratio exceeds 15 dB for a differential drive voltage of 6 V peak-to-peak. Clear eye diagrams were demonstrated at 3 Gbps for OOK modulation and 1 Gbps for RZ-DPSK modulation.
引用
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页数:7
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