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Lateral and longitudinal mode discrimination in index-guided circular ring semiconductor lasers

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3 Author(s)
Nabiev, R.F. ; Edward L. Ginzton Lab., Stanford Univ., CA, USA ; Francis, D. ; Chang-Hasnain, C.J.

We present the first analysis of the mode structure and thresholds of index-guided ring lasers, and on longitudinal mode discrimination of X-junction-coupled ring lasers. Submilliampere thresholds can be achieved with single-lateral-mode ring lasers having small refractive index steps. In addition, strong longitudinal mode discrimination can be obtained with ring lasers of different cavity lengths coupled via an X junction.<>

Published in:
Photonics Technology Letters, IEEE  (Volume:5 ,  Issue: 9 )

Date of Publication: Sept. 1993

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