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Proceedings Paper

RZ-DPSK photonic integrated transmitter for space optical communications
Author(s): Joseph Fridlander; Sergio Pinna; Victoria Rosborough; Steven Estrella; Leif Johansson; Jonathan Klamkin
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Paper Abstract

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.

Paper Details

Date Published: 15 February 2018
PDF: 7 pages
Proc. SPIE 10524, Free-Space Laser Communication and Atmospheric Propagation XXX, 105240Y (15 February 2018); doi: 10.1117/12.2287557
Show Author Affiliations
Joseph Fridlander, Univ. of California, Santa Barbara (United States)
Sergio Pinna, Univ. of California, Santa Barbara (United States)
Victoria Rosborough, Univ. of California, Santa Barbara (United States)
Steven Estrella, Univ. of California, Santa Barbara (United States)
Freedom Photonics, LLC (United States)
Leif Johansson, Freedom Photonics, LLC (United States)
Jonathan Klamkin, Univ. of California, Santa Barbara (United States)


Published in SPIE Proceedings Vol. 10524:
Free-Space Laser Communication and Atmospheric Propagation XXX
Hamid Hemmati; Don M. Boroson, Editor(s)

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