Performance optimization of externally modulated mode-locked laser diode

Benson C. Lam; Albert L. Kellner; Paul K. L. Yu

doi:10.1117/12.18145

1 June 1990 Performance optimization of externally modulated mode-locked laser diode

Benson C. Lam, Albert L. Kellner, Paul K. L. Yu

Proceedings Volume 1217, Optoelectronic Signal Processing for Phased-Array Antennas II; (1990) https://doi.org/10.1117/12.18145
Event: OE/LASE '90, 1990, Los Angeles, CA, United States

Abstract

The performance of the high speed InGaAsP ridge waveguide lasers and the GaAlAs single-mode lasers operating as a micromixer have been investigated by using a circuit model derived from the iterative method and device rate equations. The laser mixer has many advantages over the conventional microwave mixer, including: high conversion gain, wide dynamic range, low noise figure and high local oscillator/intermediate frequency (LO/IF) isolation. The analytic results also indicate that the heterodyne microwave fiber optic link using a laser mixer provides the advantages of system simplicity, cost-effectiveness and improved system signal-to-noise ratio (SNR) than the conventional microwave fiber optic links. System SNR of two fiber optic links were measured: a 12 GHz link with 70 MHz IF has a SNR of better than 120 dB/Hz and a 26.5 GHz up-converted link has a SNR of 100 dB/Hz, without laser diode RF impedance matching. Other system applications of the laser mixer are also presented.

Citation Download Citation

Benson C. Lam, Albert L. Kellner, and Paul K. L. Yu "Performance optimization of externally modulated mode-locked laser diode", Proc. SPIE 1217, Optoelectronic Signal Processing for Phased-Array Antennas II, (1 June 1990); https://doi.org/10.1117/12.18145

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