Ultrashort Pulse Generation at Quasi-40-GHz by Using a Two-Section Passively Mode-Locked InGaAsP-InP Tensile Strained Quantum-Well Laser

A 1.50 mu m passively mode-locked laser diode with a two-section tensile strained multi-quantum-well structure is fabricated. Without any external pulse compression, a Lorentz pulse train with a pulse width of 1.03 ps and a repetition rate of 35.0 GHz is obtained, which is one of the best results th...

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Bibliographic Details
Published in:Chinese physics letters 2012-02, Vol.29 (2), p.24201-1-024201-3
Main Authors: Kong, Duan-Hua, Zhu, Hong-Liang, Liang, Song, Qiu, Ji-Fang, Zhao, Ling-Juan
Format: Article
Language:English
Subjects:
Devices
Lasers
Noise levels
Optical pulses
Pulse compression
Quantum wells
Repetition
Trains
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Summary:A 1.50 mu m passively mode-locked laser diode with a two-section tensile strained multi-quantum-well structure is fabricated. Without any external pulse compression, a Lorentz pulse train with a pulse width of 1.03 ps and a repetition rate of 35.0 GHz is obtained, which is one of the best results that have been reported on similar devices. The optical pulse has a 300 kHz line width and a 50 dB peak over the noise floor in the photodetected radio-frequency electrical spectrum.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/29/2/024201