Observation of harmonic-mode-locking in a mode-locked InAs/InP-based quantum-dash laser with CW optical injection

Ehsan Sooudi; Guillaume Huyet; John G. McInerney; François Lelarge; Kamel Merghem; Anthony Martinez; Abderrahim Ramdane; Stephen P. Hegarty

doi:10.1109/LPT.2011.2114338

Observation of harmonic-mode-locking in a mode-locked InAs/InP-based quantum-dash laser with CW optical injection

Ehsan Sooudi
, Guillaume Huyet
, John G. McInerney
, François Lelarge
, Kamel Merghem
, Anthony Martinez
, Abderrahim Ramdane
, Stephen P. Hegarty

Research output: Contribution to journal › Article › peer-review

Abstract

We report tunable harmonic mode-locking in continuous-wave (CW) optically injected InAs/InP quantum-dash lasers emitting at 1.56 μm. The frequency of generated microwave pulses is twice the laser's self-mode-locked frequency. Autocorrelation traces show Gaussian pulses with low time-bandwidth product (≈0.6). Mapping of the dynamics shows that this coherent microwave oscillation (MWO) region has maximum locking range ≈600 MHz (≈5 pm). Measurement of the optical linewidth of each individual mode at this regime shows strong narrowing relative to free running values by two orders of magnitude. The RF linewidth of the generated signal is ≈160 kHz confirming the coherence among the optical modes and low timing jitter.

Original language	English
Article number	5712171
Pages (from-to)	549-551
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	23
Issue number	9
DOIs	https://doi.org/10.1109/LPT.2011.2114338
Publication status	Published - 14 Apr 2011

Keywords

Microwave oscillators
mode-locked lasers
optical injection
quantum-dash lasers

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10.1109/LPT.2011.2114338

Cite this

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title = "Observation of harmonic-mode-locking in a mode-locked InAs/InP-based quantum-dash laser with CW optical injection",

abstract = "We report tunable harmonic mode-locking in continuous-wave (CW) optically injected InAs/InP quantum-dash lasers emitting at 1.56 μm. The frequency of generated microwave pulses is twice the laser's self-mode-locked frequency. Autocorrelation traces show Gaussian pulses with low time-bandwidth product (≈0.6). Mapping of the dynamics shows that this coherent microwave oscillation (MWO) region has maximum locking range ≈600 MHz (≈5 pm). Measurement of the optical linewidth of each individual mode at this regime shows strong narrowing relative to free running values by two orders of magnitude. The RF linewidth of the generated signal is ≈160 kHz confirming the coherence among the optical modes and low timing jitter.",

keywords = "Microwave oscillators, mode-locked lasers, optical injection, quantum-dash lasers",

author = "Ehsan Sooudi and Guillaume Huyet and McInerney, \{John G.\} and Fran{\c c}ois Lelarge and Kamel Merghem and Anthony Martinez and Abderrahim Ramdane and Hegarty, \{Stephen P.\}",

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doi = "10.1109/LPT.2011.2114338",

language = "English",

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journal = "IEEE Photonics Technology Letters",

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T1 - Observation of harmonic-mode-locking in a mode-locked InAs/InP-based quantum-dash laser with CW optical injection

AU - Sooudi, Ehsan

AU - Huyet, Guillaume

AU - McInerney, John G.

AU - Lelarge, François

AU - Merghem, Kamel

AU - Martinez, Anthony

AU - Ramdane, Abderrahim

AU - Hegarty, Stephen P.

PY - 2011/4/14

Y1 - 2011/4/14

N2 - We report tunable harmonic mode-locking in continuous-wave (CW) optically injected InAs/InP quantum-dash lasers emitting at 1.56 μm. The frequency of generated microwave pulses is twice the laser's self-mode-locked frequency. Autocorrelation traces show Gaussian pulses with low time-bandwidth product (≈0.6). Mapping of the dynamics shows that this coherent microwave oscillation (MWO) region has maximum locking range ≈600 MHz (≈5 pm). Measurement of the optical linewidth of each individual mode at this regime shows strong narrowing relative to free running values by two orders of magnitude. The RF linewidth of the generated signal is ≈160 kHz confirming the coherence among the optical modes and low timing jitter.

AB - We report tunable harmonic mode-locking in continuous-wave (CW) optically injected InAs/InP quantum-dash lasers emitting at 1.56 μm. The frequency of generated microwave pulses is twice the laser's self-mode-locked frequency. Autocorrelation traces show Gaussian pulses with low time-bandwidth product (≈0.6). Mapping of the dynamics shows that this coherent microwave oscillation (MWO) region has maximum locking range ≈600 MHz (≈5 pm). Measurement of the optical linewidth of each individual mode at this regime shows strong narrowing relative to free running values by two orders of magnitude. The RF linewidth of the generated signal is ≈160 kHz confirming the coherence among the optical modes and low timing jitter.

KW - Microwave oscillators

KW - mode-locked lasers

KW - optical injection

KW - quantum-dash lasers

UR - https://www.scopus.com/pages/publications/79953824551

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DO - 10.1109/LPT.2011.2114338

M3 - Article

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SN - 1041-1135

VL - 23

SP - 549

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JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 9

M1 - 5712171

ER -

Observation of harmonic-mode-locking in a mode-locked InAs/InP-based quantum-dash laser with CW optical injection

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