Small signal frequency response of laser diodes using a femtosectond frequency comb

Ovidio Anton; G. Vaschenko; Dinesh Patel; Jon Michael Pikal; Carmen S. Menoni

doi:10.1117/12.460479

4 December 2002 Small Signal Frequency Response of laser diodes using a femtosectond frequency comb

Ovidio Anton, G. Vaschenko, Dinesh Patel, Jon Michael Pikal, Carmen S. Menoni

Proceedings Volume 4871, Semiconductor Lasers and Optical Amplifiers for Lightwave Communication Systems; (2002) https://doi.org/10.1117/12.460479
Event: ITCom 2002: The Convergence of Information Technologies and Communications, 2002, Boston, MA, United States

Abstract

A novel method to measure the optical modulation response of laser diodes that uses as the modulation source the output of a femtosecond optical parametric oscillator (OPO) is described. The femtosecond OPO generates a train of ~ 150 fs pulses tunable between 1.03 and 1.35 μm with an average power of 12 mW at a repetition rate of 81 MHz. With such a narrow pulse a rich frequency spectrum of flat intensity distribution that easily surpasses the 2000 GHz 3 dB-bandwidth is obtained. To perform modulation response measurements the OPO is selectively tuned to modulate the carrier population in either the well or separate confinement region of the laser diode. Modulation traces obtained with this method in 1.3 μm InAsP lasers are presented and compared with those obtained from electrical modulation at the same operating conditions.

Citation Download Citation

Ovidio Anton, G. Vaschenko, Dinesh Patel, Jon Michael Pikal, and Carmen S. Menoni "Small Signal Frequency Response of laser diodes using a femtosectond frequency comb", Proc. SPIE 4871, Semiconductor Lasers and Optical Amplifiers for Lightwave Communication Systems, (4 December 2002); https://doi.org/10.1117/12.460479

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