Effects of injected light and optical feedback on directly modulated MQW lasers and OTDM multigigabit-per-second system performance

Herbert Burkhard; S. Mohrdiek; H. Schoell; Hartmut Hillmer; Stefan Hansmann; A. Mattheus

doi:10.1117/12.212540

19 June 1995 Effects of injected light and optical feedback on directly modulated MQW lasers and OTDM multigigabit-per-second system performance

Herbert Burkhard, S. Mohrdiek, H. Schoell, Hartmut Hillmer, Stefan Hansmann, A. Mattheus

Author Affiliations +

Proceedings Volume 2399, Physics and Simulation of Optoelectronic Devices III; (1995) https://doi.org/10.1117/12.212540
Event: Photonics West '95, 1995, San Jose, CA, United States

Abstract

Injection-locked directly current modulated semiconductor laser transmitters are theoretically investigated with respect to transmission performance. By large signal simulation of laser, standard single-mode fiber propagation and direct detection optically pre-amplified PIN receiver, transmission distances of 80-120 km at 10 Gb/s and 40-60 km at 15 Gb/s have been evaluated with a bit-error-rate < 10^-9 with reasonable power penalty. Exploiting fiber nonlinearities with higher power launched into the fiber is demonstrated to increase the transmission distance by about 40%. Additionally the dynamics of the residual chirp of the laser is shown to act favorably on transmission performance. Guidelines for operation conditions of injection-locked lasers depending on detuning between laser and slave laser and injected power are given. Gain switching including optical feedback and the gain- levering effect have been investigated with respect to pulse production for optical time domain multiplexing. A new method for short pulse generation is presented. It is based on single frequency CW light injection into an unmodulated single mode laser under nonstable locking- conditions. Repetition frequencies larger than 150 GHz can be achieved. By soliton generation in a dispersion shifted fiber pulse widths of less than 3 ps FWHM with a squared hyperbolic cosecans shape can be generated.

Citation Download Citation

Herbert Burkhard, S. Mohrdiek, H. Schoell, Hartmut Hillmer, Stefan Hansmann, and A. Mattheus "Effects of injected light and optical feedback on directly modulated MQW lasers and OTDM multigigabit-per-second system performance", Proc. SPIE 2399, Physics and Simulation of Optoelectronic Devices III, (19 June 1995); https://doi.org/10.1117/12.212540

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