external cavity
Numerical Analysis of the Effect of Temperature and External Optical Feedback Variation on the Output Characteristics of External Cavity Semiconductor Laser Based Fiber Bragg Gratings
... The paper is structured as follows: The external cavity semiconductor laser model based fiber a Bragg grating (ECSL-FBGs) is given in the next section. Section 3 presents the temperature dependence for ...
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Femtosecond synchronously mode-locked vertical-external cavity surface-emitting laser
... Optically pumped vertical-external cavity surface-emitting lasers (VECSEL) [1] combine the advantages of multiple quantum well semiconductor lasers with optical pumping. Hence, they have the potential to ...
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Performance Analysis on a Dual External Cavity Tunable Laser ECTL Source
... dual external cavity tunable laser source, whose external cavities are constructed by micro electro mechanical systems (ME- ...inside external cavities are ...single external ...
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Mode referencing of an external cavity diode laser for continuous frequency stabilization
... the external cavity diode laser 共ECDL兲, where the emission wavelength is controlled by both injection current to the laser and a voltage to a piezoelectric transducer 共PZT兲, which controls the position of ...
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A study of active mode-locking of external cavity semiconductor lasers
... second external cavity configuration and m easurem ent set-up are presented in ...composite cavity. The external cavity was form ed from an antire fle ctive coated spherical lens o f ...
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Operation of an optical in-well-pumped vertical-external-cavity surface-emitting laser
... the external cavity, the reflectance and photoluminescence (PL) spectrum of the gain me- dium was recorded for normal incidence, as shown in ...micro- cavity resonances described above results in the ...
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Femtosecond synchronously in-well pumped vertical-external-cavity surface-emitting laser
... The external cavity geometry is controlling the spatial and longitudinal mode properties of the ...the cavity as well as allowing an independent and accurate control of the cavity ...
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External cavity diode lasers and non linear optical frequency conversion in spectroscopic applications
... an external cavity. In external cavity the single mode oscil- lation was demonstrated by observation of the spectral output and a mechanism of phase continuous tuning by varying the length of ...
207
100 kW peak power external cavity diamond Raman laser at 2.52 μm
... In conclusion, the feasibility of infrared external cavity diamond Raman lasers operating in the wavelength region of ~2.5 µm has been experimentally demonstrated. The maximum output pulse energy was 1.67 ...
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Fast Swept Wavelength, Low Threshold Current, Continuous Wave External Cavity Quantum Cascade Laser
... We present a low threshold-current and fast wavelength-tuning external cavity quantum cascade laser (EC-QCL) using a scanning galvanometer in the Littman-Metcalf cavity geometry. The EC-QCL could ...
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Quantum dot micropillar lasers subject to coherent time delayed optical feedback from a short external cavity
... short external cavity. We experimentally characterize how the external cavity length, being on the same order than the microlaser’s coherence length, influences the spectral and dynamical ...
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Wavelength controlled external cavity laser with a silicon photonic crystal resonant reflector
... of external-cavity hybrid lasers consisting of a III-V Semiconductor Optical Amplifier with fiber reflector and a Photonic Crystal (PhC) based resonant reflector on ...PhC cavity and provides a ...
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Vertical external cavity semiconductor lasers
... each layer; it exhibited an absorption profile that was broader and more spectrally uniform than that of a quantum well. The absorption cross-section of one dot is >10 − 14 cm 2 ; thus while the net saturable ...
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Quantum modeling of semiconductor gain materials and vertical-external-cavity surface-emitting laser systems
... the cavity resonance, a narrow peak arises at 843 nm superimposed on the stop ...adjacent cavity resonance is ...higher cavity resonance so that a second region of light amplification occurs around ...
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Optical devices using an external cavity semiconductor laser
... semiconductor material. In a preferred implementation, a semiconductor diode laser having opposed first and second facets is utilized as an optical source. An at least partially optically reflective surface is positioned ...
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Delay-differential-equation modeling of mode-locked vertical-external-cavity surface-emitting lasers in different cavity configurations
... Time-delayed model We consider last an alternative, and so far hypothetic, case of the central chip being the SESAM, with the gain chip and the mirror m terminating the cavity, which is [r] ...
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Separate phase locking and coherent combining of two laser diodes in a Michelson cavity
... different external cavity setups have been described in the literature, based on self-imaging [5] and interferometric architectures to force the passive phase-locking of ...
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External walls partially filled with insulation, and the potential to "top up" the residual cavity
... partially-filled external walls where ‘topping-up’ the residual cavity by injecting insulation through the external leaf might not prove to be as successful as ...where cavity trays prevent ...
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Harnessing speckle for a sub-femtometre resolved broadband wavemeter and laser stabilization
... an external cavity diode laser (ECDL) over 10 s, (a timescale suitable for, for example, laser cooling of rubidium atoms) and observe linewidth narrowing of the ECDL by a factor of ...
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Spontaneous formation of vector vortex beams in vertical-cavity surface-emitting lasers with feedback
... We also mention that a spiral vortex (Fig. 5b) can be obtained in the system described in Fig. 1 (i.e. with the BS, see Fig. S4 in [59]). This is not a generic observation, however, and leads to the idea that the ...
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