High peak-power picosecond pulse generation at 1.26 µm using a quantum-dot-based external-cavity mode-locked laser and tapered optical amplifier.

In this paper, we present the generation of high peak-power picosecond optical pulses in the 1.26 μm spectral band from a repetition-rate-tunable quantum-dot external-cavity passively mode-locked laser (QD-ECMLL), amplified by a tapered quantum-dot semiconductor optical amplifier (QD-SOA). The laser emission wavelength was controlled through a chirped volume Bragg grating which was used as an external cavity output coupler. An average power of 208.2 mW, pulse energy of 321 pJ, and peak power of 30.3 W were achieved. Preliminary nonlinear imaging investigations indicate that this system is promising as a high peak-power pulsed light source for nonlinear bio-imaging applications across the 1.0 μm - 1.3 μm spectral range.

[1]  T. W. Berg,et al.  Saturation and noise properties of quantum-dot optical amplifiers , 2004, IEEE Journal of Quantum Electronics.

[2]  Daniil I. Nikitichev,et al.  Broad Repetition-Rate Tunable Quantum-Dot External-Cavity Passively Mode-Locked Laser with Extremely Narrow Radio Frequency Linewidth , 2011 .

[3]  Igor L. Krestnikov,et al.  Quantum-dot external-cavity passively modelocked laser with high peak power and pulse energy , 2010 .

[4]  Yaron Silberberg,et al.  Third-harmonic microscopy with a titanium–sapphire laser , 2002 .

[5]  Masao Ikeda,et al.  100 W peak-power 1 GHz repetition picoseconds optical pulse generation using blue-violet GaInN diode laser mode-locked oscillator and optical amplifier , 2010 .

[6]  Chi‐Kuang Sun,et al.  Virtual biopsy of rat tympanic membrane using higher harmonic generation microscopy. , 2010, Journal of biomedical optics.

[7]  W. Denk,et al.  Two-photon laser scanning fluorescence microscopy. , 1990, Science.

[8]  George Filippidis,et al.  Compact ultrafast semiconductor disk laser: targeting GFP based nonlinear applications in living organisms , 2011, Biomedical optics express.

[9]  Andreas Stintz,et al.  Passive mode-locking in 1.3 μm two-section InAs quantum dot lasers , 2001 .

[10]  M. Drobizhev,et al.  Two-photon absorption properties of fluorescent proteins , 2011, Nature Methods.

[11]  Masao Ikeda,et al.  Two-photon fluorescence bioimaging with an all-semiconductor laser picosecond pulse source. , 2007, Optics letters.

[12]  N. Nishimura,et al.  Deep tissue multiphoton microscopy using longer wavelength excitation. , 2009, Optics express.

[13]  M. Thompson,et al.  External-Cavity Mode-Locked Quantum-Dot Laser Diodes for Low Repetition Rate, Sub-Picosecond Pulse Generation , 2011, IEEE Journal of Selected Topics in Quantum Electronics.

[14]  L. Lester,et al.  A Low Repetition Rate All-Active Monolithic Passively Mode-Locked Quantum-Dot Laser , 2011, IEEE Photonics Technology Letters.

[15]  E. Rafailov,et al.  Mode-locked quantum-dot lasers , 2007 .

[16]  Daniil I. Nikitichev,et al.  High-Power Versatile Picosecond Pulse Generation from Mode-Locked Quantum-Dot Laser Diodes , 2011, IEEE Journal of Selected Topics in Quantum Electronics.

[17]  J. Chen,et al.  Nonlinear optical microscopy for visualizing dermal structural assembly in normal and pathological human dermis , 2009 .

[18]  M. Thompson,et al.  InGaAs Quantum-Dot Mode-Locked Laser Diodes , 2009, IEEE Journal of Selected Topics in Quantum Electronics.

[19]  Shi-Wei Chu,et al.  Wavelength dependent damage in biological multi-photon confocal microscopy: A micro-spectroscopic comparison between femtosecond Ti:sapphire and Cr:forsterite laser sources , 2002 .

[20]  Chi-Kuang Sun,et al.  Compact fiber-delivered Cr:forsterite laser for nonlinear light microscopy. , 2005, Journal of biomedical optics.

[21]  Hiroyuki Yokoyama,et al.  Two-photon fluorescence imaging with a pulse source based on a 980-nm gain-switched laser diode. , 2007, Optics express.

[22]  H. Hamaguchi,et al.  In-vivo multi-nonlinear optical imaging of a living cell using a supercontinuum light source generated from a photonic crystal fiber. , 2006, Optics express.

[23]  Wilson Sibbett,et al.  High-power picosecond and femtosecond pulse generation from a two-section mode-locked quantum-dot laser , 2005 .

[24]  H. Tsubokawa,et al.  Nonlinear-microscopy optical-pulse sources based on mode-locked semiconductor lasers. , 2008, Optics express.

[25]  J Mertz,et al.  Membrane imaging by simultaneous second-harmonic generation and two-photon microscopy. , 2000, Optics letters.

[26]  Bruce J Tromberg,et al.  Effect of pulse duration on two-photon excited fluorescence and second harmonic generation in nonlinear optical microscopy. , 2006, Journal of biomedical optics.