(250.5960) Semiconductor lasers
Ultrafast switch-on dynamics of frequency-tuneable semiconductor lasers
... frequency-tuneable semiconductor lasers are an important technology that have found applications across the electromagnetic ...feedback lasers is restricted since the grating period is fixed and there ...
8
Studies on the Effective Physical Parameters for Chirp Reduction in Optical Injection Locked Semiconductor Lasers
... of semiconductor lasers and severely limits the transmission distance of direct-modulated laser, studies on the origin of chirp dated back to the mid-80s ...the semiconductor material, the refractive ...
5
Optical phase-lock loops using semiconductor lasers
... require lasers with a maximum summed linewidth of 7MHz (500MHz filter bandwidth assumed) for a modified first order loop or 6MHz for a second order ...DFB lasers, but should be straight forward with ...
174
Photonic crystals as functional mirrors for semiconductor lasers
... 1305 nm. Figure 9.9 shows the output spectra and beam profiles over a range of pump currents for the device. The device has three distinct operating phases. The first and most obvious of these is the sub-threshold phase. ...
172
Optoelectronic Control of the Phase and Frequency of Semiconductor Lasers
... A large part of this work has been collaborative, and I thank the number of re- searchers with whom I have benefited from working. Dr. Wei Liang was instrumental in helping me develop a good understanding of the ...
214
Highly-photostable and mechanically flexible all-organic semiconductor lasers
... The operating lifetime under ambient conditions of mechanically-flexible organic semiconductor lasers based on monodisperse star-shaped oligofluorenes has been improved by using two approaches. A flexible ...
14
Polarization fluctuations in vertical-cavity semiconductor lasers
... We report, theoretically and experimentally, how polarization fluctuations in vertical-cavity semiconductor lasers are affected by optical anisotropies. We develop a spin-eliminated ~ class A ! description ...
15
Effect of spatial hole burning on output characteristics of high power edge emitting semiconductor lasers : a universal analytical estimate and numerical analysis
... Effect of spatial hole burning on output characteristics of high power edge emitting semiconductor lasers: a universal analytical estimate and numerical analysis.. Eugene A.[r] ...
26
Discretely Tunable Semiconductor Lasers Suitable for Photonic Integration
... tunable semiconductor lasers will play an impor- tant part in next generation optical ...Tunable lasers are essential in wavelength-agile networks and as a means to reduce costs as sparing ...
6
Vertical external cavity semiconductor lasers
... Indeed, pulsed semiconductor lasers seldom use their broad intrinsic gain bandwidth to full advantage in the generation of short pulses. The mode-locked VECSELs described above typically exhibit rather ...
11
Dynamic modal analysis of monolithic mode-locked semiconductor lasers
... to semiconductor lasers and successfully explained a number of important trends in the behavior of mode-locked lasers using simplified models that involved only three modes [15], [16], [20], or, in ...
14
One and two photon pumped organic semiconductor lasers
... These bisfluorene dendrimers show excellent lasing performance and as such have great potential for use in more compact organic semiconductor lasers. They do however require excitation at ultraviolet ...
185
Investigation and Application of Microscale Semiconductor Lasers and Cavities
... in semiconductor device physics, all carried out in-house: design, fabrication, testing, and ...(QC) lasers for absorption spectroscopy in the mid infrared ...
156
Bifurcation scenarios in semiconductor lasers subject to optical injection
... The physically meaningful values of the linewidth enhancement factor α = 5, pump current P = 1 and the ratio of photon and carrier lifetime T = 1000 will be used throughout. It is of course an exciting question how these ...
31
A study of active mode-locking of external cavity semiconductor lasers
... O u r second external cavity configuration and m easurem ent set-up are presented in Fig. 6.3. The semiconductor laser used in th is experim ent was the B TR L device (ser. no. 10315) w hich was also used fo r F M ...
225
Design and Characterisation of III-V Semiconductor Nanowire Lasers
... nanowire lasers can be much larger compared to conventional, planar semiconductor lasers, because of their small dimensions and the high refractive index ...nanowire lasers can be increased in ...
200
Fibre compatible modelocked lasers at 1 5μm
... modelocked semiconductor lasers that have been current modulated at low frequencies has been ...internal semiconductor laser ...by semiconductor lasers requires further study since ...
214
THz Quantum-Cascade Lasers for Heterodyne Techniques
... THz semiconductor lasers Semiconductor device requirements: ¥ Low enough energy level separation for THz photon emission ¥ More electrons at high energy than low energy i.e., a populatio[r] ...
29
Design, fabrication, and characterization of semiconductor transverse Bragg resonance lasers
... designing lasers. The field of semiconductor lasers has advanced from the use of buried heterostructure devices for transverse confinement[28] to the latest in mode control, the photonic bandgap, ...
132
Properties of Buried Heterostructure Single Quantum Well (Al,Ga)As Lasers
... Abstract Unlike conventional semiconductor lasers, single quantum well SQW lasers with high reflectivity end facet coatings have dramatically reduced threshold currents as a result of th[r] ...
170