Planar photoelastic effect for rf photonics system

Qizhi Z. Liu; Wei-Xi Chen; Robert B. Welstand; Z. F. Guan; Q. J. Xing; Hao Jiang; Stephen A. Pappert; Hans P. Zappe; S. S. Lau; Paul K. L. Yu

doi:10.1117/12.283937

23 October 1997 Planar photoelastic effect for rf photonics system

Qizhi Z. Liu, Wei-Xi Chen, Robert B. Welstand, Z. F. Guan, Q. J. Xing, Hao Jiang, Stephen A. Pappert, Hans P. Zappe, S. S. Lau, Paul K. L. Yu

Author Affiliations +

Proceedings Volume 3160, Optical Technology for Microwave Applications VIII; (1997) https://doi.org/10.1117/12.283937
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

Planar photoelastic effect on compound semiconductor structures has been investigated for integrated optical transmitter in rf photonics system. While our prior works emphasized the investigation of low-loss photoelastic waveguide, photoelastic waveguide modulator, and photoelastic optical splitter, the present work focuses on the attainment of high performance laser which employs the photoelastic effect for waveguiding. Planar separate- confinement, double-heterostructure, single-quantum-well photoelastic GaAs/AlGaAs lasers have been fabricated using WNi stressors for waveguiding and ion implantation for isolation. Even without bonded on heat-sinks, these planar photoelastic lasers operate continuous wave at room temperature. The lowest threshold is 29 mA for a cavity length of 178 micrometers and a stressor width of 5 micrometers . The main waveguiding mechanism of the photoelastic lasers is determined to be weak index-guiding with the beam waist in the junction plane measured at 10 micrometers behind the end- facet.

Citation Download Citation

Qizhi Z. Liu, Wei-Xi Chen, Robert B. Welstand, Z. F. Guan, Q. J. Xing, Hao Jiang, Stephen A. Pappert, Hans P. Zappe, S. S. Lau, and Paul K. L. Yu "Planar photoelastic effect for rf photonics system", Proc. SPIE 3160, Optical Technology for Microwave Applications VIII, (23 October 1997); https://doi.org/10.1117/12.283937

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