Multicolor lasers using birefringent filters: experimental demonstration with Cr:Nd:GSGG and Cr:LiSAF
TLDR
This study is the first detailed investigation and experimental demonstration of birefringent filters with tilted optical axis for multicolor operation of solid-state lasers and it is suggested that implementation of tilted-axis BRFs should boost development of efficient and low-costMulticolor lasers in other gain media as well.Abstract:
In this study, we numerically and experimentally investigate application of birefringent filters (BRFs) as frequency selective elements in multicolor lasers. A BRF plate made out of crystalline quartz with an arbitrarily oriented optical axis has been explored. Simulation results have shown that compared to regular BRFs where the optical axis lies in the plane of the plates surface, a BRF with an optical axis pointing out of its surface enables design flexibility in filter parameters, providing access to a wider set of free spectral range and bandwidth values. As a result, multicolor operation could be obtained in many wavelength pairs using a single BRF plate. In the experiments a 3-mm thick quartz BRF with an optical axis 45° to the surface plane has been used. With Cr:Nd:GSGG as a laser medium two-color and three-color cw laser operation has been demonstrated in 11 and 3 different transition combinations, respectively. Moreover, two-color laser operation has been demonstrated in 10 different wavelength pairs in Cr:LiSAF. To our knowledge, this study is the first detailed investigation and experimental demonstration of BRFs with tilted optical axis for multicolor operation of solid-state lasers. Compared to other methods, BRFs enable a rich selection of transition pairs and also the ratio of the power in each line could be regulated by fine adjustment of the rotation angle. Implementation of tilted-axis BRFs should boost development of efficient and low-cost multicolor lasers in other gain media as well.read more
Citations
More filters
Journal ArticleDOI
Dual-wavelength operation of a diode-pumped Nd:YVO 4 laser at the 1064.1 & 1073.1 nm and 1064.1 & 1085.3 nm wavelength pairs
Tanant Waritanant,Arkady Major +1 more
TL;DR: Two dual-wavelength operation regimes of a diode-pumped Nd:YVO4 laser were demonstrated at 1064.1 and 1073.3 nm with two intracavity birefringent plates.
Journal ArticleDOI
A discretely tunable dual-wavelength multi-watt Yb:CALGO laser
TL;DR: In this article, a dual-wavelength diode-pumped Yb:CALGO laser using a single birefringent filter (BRF) plate which covered a wavelength range of approximately 1020-1070nm was demonstrated.
Journal ArticleDOI
Cr: Colquiriite Lasers: Current Status and Challenges for Further Progress
TL;DR: In this paper, the authors present a review of the development of robust, low-cost, highly-efficient, and tunable cw and femtosecond laser sources based on diode-pumped Cr:Colquiriite gain media.
Journal ArticleDOI
Off-surface optic axis birefringent filters for smooth tuning of broadband lasers.
TL;DR: It is shown that a magnesium fluoride BRF with an optic axis diving by 30° into the plate could provide smooth tuning of ultra-broad laser gain media and have the potential to be useful in tuning of broadband lasers in continuous-wave, long-pulsed, and femtosecond operation regimes.
Journal ArticleDOI
Discrete multi-wavelength tuning of a continuous wave diode-pumped Nd:GdVO4 laser
TL;DR: In this paper, a diode-pumped Nd:GdVO4 laser at four different wavelengths was demonstrated using a single birefringent filter plate, achieving maximum output powers of 5.92 W, 5.66 W,5.56 W and 3.98 W at 1063.2 nm, 1070.8 nm, 1082.5 nm and 1086.2nm, respectively.
References
More filters
Journal ArticleDOI
Real-time dual-wavelength digital holographic microscopy with a single hologram acquisition
Jonas Kühn,Tristan Colomb,Frédéric Montfort,Florian Charrière,Yves Emery,Etienne Cuche,Pierre Marquet,Christian Depeursinge +7 more
TL;DR: In this paper, a technique to perform two-wavelengths digital holographic microscopy (DHM) measurements with a single hologram acquisition is presented, where the vertical measurement range without phase ambiguity is extended to the micron range, thanks to the resulting synthetic wavelength defined by the beating of two wavelengths with a separation of about 80nm.
Journal ArticleDOI
Broadly tunable dual-wavelength light source for coherent anti-Stokes Raman scattering microscopy
TL;DR: Applications of this light source to in vivo cell and ex vivo tissue imaging are demonstrated.
Journal ArticleDOI
Room temperature continuous wave milliwatt terahertz source
Maik Scheller,J. M. Yarborough,Jerome V. Moloney,Mahmoud Fallahi,Martin Koch,Stephan W. Koch +5 more
TL;DR: This work presents a continuous wave terahertz source based on intracavity difference frequency generation within a dual color vertical external cavity surface emitting laser using a nonlinear crystal with a surface emitting phase matching scheme for high conversion efficiencies.
Journal ArticleDOI
Difference-frequency terahertz-wave generation from 4-dimethylamino-N-methyl-4-stilbazolium-tosylate by use of an electronically tuned Ti:sapphire laser.
Kodo Kawase,M. Mizuno,S. Sohma,Hidenori Takahashi,Tetsuo Taniuchi,Yoshiharu Urata,Satoshi Wada,Hideo Tashiro,Hiromasa Ito +8 more
TL;DR: This work generated a coherent terahertz wave, using DAST, from the difference frequency between two oscillating wavelengths of an electronically tuned Ti:sapphire laser, and proves the high efficiency of DAST crystals for generation of difference-frequency THz waves.
Journal ArticleDOI
cw dual-wavelength operation of a diode-end-pumped Nd:YVO4 laser
TL;DR: In this paper, a dual-wavelength continuous wave (cw) diode-end-pumped Nd:YVO4 laser that generates simultaneous laser action at the wavelengths 1064nm and 1342nm is demonstrated.