TY - JOUR
T1 - Optical frequency comb generation using dual-mode injection-locking of quantum-dash mode-locked lasers
T2 - Properties and applications
AU - Sooudi, Ehsan
AU - Sygletos, Stylianos
AU - Ellis, Andrew D.
AU - Huyet, Guillaume
AU - McInerney, John G.
AU - Lelarge, François
AU - Merghem, Kamel
AU - Rosales, Ricardo
AU - Martinez, Anthony
AU - Ramdane, Abderrahim
AU - Hegarty, Stephen P.
PY - 2012/8/27
Y1 - 2012/8/27
N2 - In this paper, we describe generation and application of wide narrow linewidth optical frequency combs using dual-mode injection-locking of InP quantum-dash mode-locked lasers. First, the dependence of the RF locking-range on the device's absorber voltage is experimentally investigated. Under optimized absorber voltage, a continuous wide RF locking-range of ≈400 MHz is achievable for lasers with 21 GHz repetition rate. The total RF locking-range of ≈440 MHz is possible considering locking-range for positive and negative absorber voltages. This wide tuning > 2% of the repetition rate, a record for a monolithic mode-locked laser, is reported from a two-section device without any additional passive section or extended-cavity for repetition rate tuning. It is shown that the effective RF locking-range in dual-mode injection corresponds to the optical locking-range and repetition rate tuning under CW injection, which is wider when the free-running mode-locking operation is "less stable." The widest comb consists of 35 narrow lines within 10 dB of the peak, spanning ≈ 0.7 THz and generating 3.7 ps pulses. Second, we show the first demonstration of multi pump phase-synchronization of two 10 Gb/s DPSK channels in a phase-sensitive amplifier using dual-mode injection-locking technique. The phase-sensitive amplifier based on the "black box" scheme shows more than 7 dB phase-sensitive gain and error free performance for both input channels with 1 dB penalty.
AB - In this paper, we describe generation and application of wide narrow linewidth optical frequency combs using dual-mode injection-locking of InP quantum-dash mode-locked lasers. First, the dependence of the RF locking-range on the device's absorber voltage is experimentally investigated. Under optimized absorber voltage, a continuous wide RF locking-range of ≈400 MHz is achievable for lasers with 21 GHz repetition rate. The total RF locking-range of ≈440 MHz is possible considering locking-range for positive and negative absorber voltages. This wide tuning > 2% of the repetition rate, a record for a monolithic mode-locked laser, is reported from a two-section device without any additional passive section or extended-cavity for repetition rate tuning. It is shown that the effective RF locking-range in dual-mode injection corresponds to the optical locking-range and repetition rate tuning under CW injection, which is wider when the free-running mode-locking operation is "less stable." The widest comb consists of 35 narrow lines within 10 dB of the peak, spanning ≈ 0.7 THz and generating 3.7 ps pulses. Second, we show the first demonstration of multi pump phase-synchronization of two 10 Gb/s DPSK channels in a phase-sensitive amplifier using dual-mode injection-locking technique. The phase-sensitive amplifier based on the "black box" scheme shows more than 7 dB phase-sensitive gain and error free performance for both input channels with 1 dB penalty.
KW - Mode-locked lasers
KW - optical frequency combs
KW - optical-injection-locking
KW - phase-sensitive amplifiers
KW - quantum-dash lasers
U2 - 10.1109/JQE.2012.2210389
DO - 10.1109/JQE.2012.2210389
M3 - Article
AN - SCOPUS:84865276202
SN - 0018-9197
VL - 48
SP - 1327
EP - 1338
JO - IEEE Journal of Quantum Electronics
JF - IEEE Journal of Quantum Electronics
IS - 10
M1 - 6249718
ER -