
Proceedings Paper
Demonstration of arbitrary channel selection utilizing a pulse-injected double phase-locked semiconductor laserFormat | Member Price | Non-Member Price |
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Paper Abstract
We demonstrate and characterize arbitrary channel selection utilizing both the double phase-locked and optical
injection schemes experimentally. The double phase-locked scheme is realized by both optical injection and electrical
modulation to the slave laser (SL) from a pulsed laser. The pulsed laser is generated by the semiconductor
laser under optoelectronic feedback, which outputs repetitive pulse train with the repetition frequency controlled
by the feedback delay time and feedback strength. When the SL subject to only the optical pulse injection from
the pulsed laser, a broadband microwave frequency comb with amplitude variation ±5 dB in a 20 GHz range is
generated. By further applying an electrical modulation to form a double phase-locked condition, a main channel
can be selected accordingly. The advantages of large channel suppression ratio, system stabilization, and spurious
noise reduction are obtained by using the double phase-locked technique. Moreover, by further applying an
optical cw injection from a tunable laser, we demonstrate the selection of a secondary channel. A selection range
of about 7.2 GHz is achieved by adjusting the cw injection strength. Average channel suppression between the
main and secondary channels to the undesired channels with ratios of 41.8 and 25.9 dB are obtained, respectively.
The single sideband (SSB) phase noise of -60 dBc/kHz (-90 dBc/Hz estimated) is achieved at offset frequencies
of 25 and 200 kHz for the main and secondary channels, respectively. Demonstration of communication between
the main and secondary channels is also demonstrated.
Paper Details
Date Published: 21 February 2011
PDF: 9 pages
Proc. SPIE 7933, Physics and Simulation of Optoelectronic Devices XIX, 793322 (21 February 2011); doi: 10.1117/12.873719
Published in SPIE Proceedings Vol. 7933:
Physics and Simulation of Optoelectronic Devices XIX
Bernd Witzigmann; Fritz Henneberger; Yasuhiko Arakawa; Alexandre Freundlich, Editor(s)
PDF: 9 pages
Proc. SPIE 7933, Physics and Simulation of Optoelectronic Devices XIX, 793322 (21 February 2011); doi: 10.1117/12.873719
Show Author Affiliations
Yu-Shan Juan, National Tsing Hua Univ. (Taiwan)
Fan-Yi Lin, National Tsing Hua Univ. (Taiwan)
Published in SPIE Proceedings Vol. 7933:
Physics and Simulation of Optoelectronic Devices XIX
Bernd Witzigmann; Fritz Henneberger; Yasuhiko Arakawa; Alexandre Freundlich, Editor(s)
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