Results 91 to 100 of about 1,871,253 (213)

All-fiber passive mode-locked laser to generate ps pulses based in a symmetrical NOLM¹ [PDF]

open access: yes, 2009
We experimentally investigate an all-fiber passively mode-locked laser generating ps pulses. The experimental setup is a figure eight fiber laser configuration, including a power-symmetric Nonlinear Optical Loop Mirror (NOLM) with highly twisted low ...
BALDEMAR IBARRA ESCAMILLA   +2 more
core  

3 W high-power laser passively mode-locked by graphene oxide saturable absorber

open access: yes, 2013
A novel reflective graphene oxide based saturable absorber is fabricated and used to passively mode locked the Nd:YVO4 ultrafast laser system. The maximum average output power measured is 3.06W and the optical to optical conversion efficiency is about 25%
Liu, Jie   +11 more
core   +1 more source

Photonic crystals as functional mirrors for semiconductor lasers

open access: yes, 2008
In recent years, interest has grown in the research fields of semiconductor lasers and photonic crystals. This thesis looks at integrating photonic crystals into existing semiconductor laser technology to act as functional laser mirrors.
Moore, Stephen A.
core  

Kerr-Lens Mode-Locked Yb:BaF2 Laser

open access: yesPhotonics
We present sub-50 fs soliton pulse generation from a diode-pumped Kerr-lens mode-locked laser based on an Yb3+-doped BaF2 crystal. Utilizing a spatially single-mode, fiber-coupled InGaAs laser diode at 976 nm as a pump source, the Yb:BaF2 laser generates
Zhi-Qiang Li   +11 more
doaj   +1 more source

A milimetre wave phase shifter using a wireless hybrid mode locked laser

open access: yes, 2009
40 GHz hybrid mode locking is observed using planar antennas to form a wireless connection to the saturable absorber. Electronically controlled phase shift is measured which could enable remote antenna beam steering in future WLAN ...
Cryan, MJ, Khawaja, BAM
core  

An ultra-narrow spectral width passively mode-locked laser

open access: yes, 2017
We demonstrate a passively mode-locked laser emitting 4.3 nanosecond Fourier-limited pulses with a record low spectral bandwidth of 104.9 MHz (more than 100 times narrower than previous realizations), allowing its full characterization in the radio ...
Brent E. Little   +20 more
core   +1 more source

Diode-pumped 88 fs SESAM mode-locked Tm,Ho:CLNGG laser at 2090 nm

open access: yesApplied Physics Express
We report on a passively mode-locked Tm,Ho:CLNGG laser operating at 2090 nm, pumped by a multimode fiber-coupled 793 nm laser diode, representing the first demonstration of a diode-pumped sub-100-fs mode-locked laser at 2.1 μ m wavelength.
Anna Suzuki   +4 more
doaj   +1 more source

Random Search Algorithm-Assisted Automatic Mode-Locked Fiber Lasers

open access: yesPhotonics
Automatic mode-locking is a crucial approach for achieving ultrashort pulses in fiber lasers. Here, a random search algorithm was developed, and an automatic mode-locked laser was constructed.
Penghui Yang   +3 more
doaj   +1 more source

Passive mode-locked Nd:YVO(4) laser using a multi-walled carbon nanotube saturable absorber

open access: yes, 2011
We report a passive mode-locked Nd:YVO(4) laser pumped by 880 nm LD using a transmission-type multi-walled carbon nanotube saturable absorber. At the pump power of 6.1 W, the average output power of 0.8 W of continuous wave mode-locked laser with optical
Sun L   +7 more
core  

Generation of compressed optical pulses beyond 160 GHz based on two injection-locked CW lasers

open access: yes
Two CW signals separated by either 160GHz or 200GHz are phase locked to each other and combined together forming a highly stable pulsed seed for a nonlinear compressor based on four-wave mixing in ...
Parmigiani, F.   +5 more
core  

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