530 research outputs found
10W Nd:YAG Laser for TAMA300
No full textDavid J. Hosken, Damien Mudge, Peter J. Veitch, Jesper Munch and Kohei Taken
10W, Single Frequency, CW Nd:YAG Laser
No full textWe describe the development and characterisation of a 10W cw Nd:YAG travelling-wave laser[1] that is injectionlocked to produce a low noise, single frequency, diffraction limited TEM00 output[2,3]. The 10W slave laser uses the side pumped, top and bottom cooled, coplanar folded zigzag slab (CPFS) architecture[4] and has been optimised for portability and reliability. This laser is used at the high power test facility of the Australian Consortium for Interferometric Gravitational Astronomy (ACIGA), with another version to be installed on the Japanese TAMA long-baseline gravitational wave interferometer. We shall report on laser performance including amplitude and frequency stability. [1] D.J. Hosken, D. Mudge, C. Hollitt, K. Takeno, P.J. Veitch, M.W. Hamilton and J. Munch, Prog. Theor. Phys. Suppl. 151, 216, 2003. [2] D.J. Ottaway, P.J. Veitch, M.W. Hamilton, C. Hollitt, D. Mudge and J. Munch, IEEE J. Quantum Electron. 34, 2006, 1998. [3] D.J Ottaway, P.J. Veitch, C. Hollitt, D. Mudge, M.W Hamilton and J. Munch, Appl. Physics B, 71, 163, 2000. [4] J. Richards and A. McInnes, Opt. Lett. 20, 371, 1995.David J. Hosken, Damien Mudge, Peter J. Veitch, Jesper Munch, Kohei Taken
Power scaling and reliable cryogenic cooling of a high power solid state laser
No full textPower scaling in room-temperature solid-state lasers is limited by thermally induced distortion and birefringence. We describe the development of a cryogenic conduction–cooled high power Yb:YAG slab laser that is robust and power scalable.Miftar Ganija, David J. Ottaway, David J. Hosken, Peter J. Veitch and Jesper Munc
Searching for stochastic gravitational-wave background with the co-located LIGO interferometers
No full textAidan Brooks, David Hosken , Damien Mudge, Jesper Munch and Peter Veitch and are members of the LIGO Scientific CollaborationThis paper presents techniques developed by the LIGO Scientic Collaboration to search for the stochastic gravitational-wave background using the co-located pair of LIGO interferometers at Hanford, WA. We use correlations between interferometers and environment monitoring instruments, as well as time-shifts between two interferometers (described here for the first time) to identify correlated noise from non-gravitational sources. We veto particularly noisy frequency bands and assess the level of residual non-gravitational coupling that exists in the surviving data.N V Fotopoulos (for the LIGO Scientific Collaboration
Resonantly diode-pumped continuous-wave and Q-switched Er:YAG laser at 1645 nm
No full textWe describe an efficient Er:YAG laser that is resonantly pumped using continuous-wave (CW) laser diodes at 1470 nm. For CW lasing, it emits 6.1 W at 1645 nm with a slope efficiency of 36%, the highest efficiency reported for an Er:YAG laser that is pumped in this manner. In Q-switched operation, the laser produces diffraction-limited pulses with an average power of 2.5 W at 2 kHz PRF. To our knowledge this is the first Q-switched Er:YAG laser resonantly pumped by CW laser diodes.N. W. H. Chang, N. Simakov, D. J. Hosken, J. Munch, D. J. Ottaway and P. J. Veitc
Erratum: Search for gravitational waves from binary black hole inspiral, merger, and ringdown (Physical Review D - Particles, Fields, Gravitation and Cosmology 2011; 83(12):122005-1-122005-20)
No full textThis paper was published online on 6 June 2011 with an omission in the Collaboration author list. S. Dwyer has been added as of 12 April 2012. The Collaboration author list is incorrect in the printed version of the journal.J. Abadie... D. J. Hosken... J. Munch... D. J. Ottaway... P. J. Veitch...et al. (LIGO Scientific Collaboration, VIRGO Collaboration
Erratum: All-sky search for gravitational-wave bursts in the first joint LIGO-GEO-Virgo run (Physical Review D - Particles, Fields, Gravitation and Cosmology - 2010: 81(10) 102001-1-102001-20)
No full textThis paper was published online on 5 May 2010 with an omission in the Collaboration author list. S. Dwyer has been added as of 12 April 2012. The Collaboration author list is incorrect in the printed version of the journalJ. Abadie... D. J. Hosken... J. Munch... D. J. Ottaway... P. J. Veitch...et al. (LIGO Scientific Collaboration, VIRGO Collaboration
Power scaling of cryogenically cooled high power solid state laser
No full textPower scaling in solid-state lasers is limited by thermally induced distortion and birefringence. It is well known that the thermal characteristics of YAG improve significantly at cryogenic temperatures, but these advantages have not been exploited in robust, power scalable designs. We report on the design and preliminary results of a high power Yb:YAG slab system operation at cryogenic temperatures.Miftar Ganija, David J. Ottaway, David J. Hosken, Peter J. Veitch and Jesper Munc
Stable, single frequency Er:YAG lasers at 1.6 micrometres
No full textStable, single frequency lasers in the eye-safe band are essential for coherent remote sensing. We describe an Er:YAGlaser that is resonantly pumped using diode lasers, and produces a polarized, single frequency, diffraction limited beam at 1645 nm with a frequency stability suitable for single-shot velocity measurements with a precision 0.1 ms-1.Nick Wei-Han Chang, David J. Hosken, Jesper Munch, David Ottaway, and Peter J. Veitc
Adelaide High Power Laser Development
No full textDamien Mudge, David Hosken, Peter Veitch, Jesper Munchhttp://www.ligo.caltech.edu/docs/G/G040068-00/http://admdbsrv.ligo.caltech.edu/meetings/lsc_default_closed.htf?meetingid=1
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