Abstract

Amplification of high-bandwidth phase-modulated optical signals from integrated-optics phase modulators at 793 nm is experimentally demonstrated using an injection-locking technique. Off-the-shelf wide-bandwidth integrated-optics modulators are power limited at 793 nm owing to photorefractive damage of the LiNbO3 waveguides. Typical optical input powers for these devices at this wavelength are less than 10 mW with optical output powers typically less than 1 mW. To amplify the outputs of these modulators, we injected the phase-modulated light into an antireflection-coated 100-mW single-mode diode laser. With the injection-locking technique, small-signal gains of 23 dB are demonstrated with good signal fidelity up to bandwidths of 3 GHz. A bandwidth limitation is found at approximately 3 GHz for sinusoidal phase-modulated signals, above which signal fidelity is seriously degraded. This limitation is significantly less than the measured relaxation oscillations of ∼5.6 GHz, suggesting a new limitation to injection locking of phase-modulated signals. Amplification of binary-phase-shift-keyed-modulated signals to 6 Gbit/s is also demonstrated with no bit errors over the 256-bit test sequences.

© 2002 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Two-way fiber-wireless convergence systems based on two-stage injection-locked VCSELs transmitter and optical interleaver

Chung-Yi Li, Hai-Han Lu, Cheng-Ling Ying, Jun-Ren Zheng, Che-Yu Lin, and Zhi-Wei Wan
Opt. Express 23(4) 5244-5252 (2015)

Frequency tunable optoelectronic oscillator based on a directly modulated DFB semiconductor laser under optical injection

Peng Wang, Jintian Xiong, Tingting Zhang, Dalei Chen, Peng Xiang, Jilin Zheng, Yunshan Zhang, Ruoming Li, Long Huang, Tao Pu, and Xiangfei Chen
Opt. Express 23(16) 20450-20458 (2015)

A pulsated weak-resonant-cavity laser diode with transient wavelength scanning and tracking for injection-locked RZ transmission

Gong-Ru Lin, Yu-Chieh Chi, Yu-Sheng Liao, Hao-Chung Kuo, Zhi-Wang Liao, Hai-Lin Wang, and Gong-Cheng Lin
Opt. Express 20(13) 13622-13635 (2012)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription