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Showing 25 to 36 of 360 entries
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Novel transient scattering technique for femtosecond dephasing measurements.

Optics letters

Weiner AM, Ippen EP.
PMID: 19718233
Opt Lett. 1984 Feb 01;9(2):53-5. doi: 10.1364/ol.9.000053.

A novel transient scattering technique is proposed for femtosecond dephasing time measurements. This technique provides several advantages compared with existing techniques for time-domain dephasing measurements, including resolution below the pulse width, insensitivity to rapid energy relaxation, and clear demarcation...

[Not Available].

Duodecim; laaketieteellinen aikakauskirja

Penttilä J, Appel H, Rintahaka P, Heikkinen R, Syvälahti E.
PMID: 17612114
Duodecim. 2007;123(7):812-8.

No abstract available.

Orthogonal polarization fiber gyroscope with increased stability and resolution.

Applied optics

Doerr CR, Tamura K, Shirasaki M, Haus HA, Ippen EP.
PMID: 20963026
Appl Opt. 1994 Dec 01;33(34):8062-8. doi: 10.1364/AO.33.008062.

The orthogonal polarization fiber gyroscope (OPFG) is an interferometric fiber gyroscope design that requires no phase bias in the fiber ring and is insensitive to light-source intensity noise. However, in the original OPFG [Hitachi Rev. 33, 215 (1984)], environmental...

Technique for obtaining high-energy ultrashort pulses from an additive-pulse mode-locked erbium-doped fiber ring laser.

Optics letters

Tamura K, Doerr CR, Nelson LE, Haus HA, Ippen EP.
PMID: 19829538
Opt Lett. 1994 Jan 01;19(1):46-8. doi: 10.1364/ol.19.000046.

We report a self-starting stretched-pulse polarization additive-pulse mode-locked erbium-doped fiber ring laser with high output power. By using the light normally absorbed by the intracavity polarizer as the output, we obtained pulses with energies greater than 0.5 nJ at...

Asynchronous soliton mode locking.

Optics letters

Doerr CR, Haus HA, Ippen EP.
PMID: 19855708
Opt Lett. 1994 Dec 01;19(23):1958-60. doi: 10.1364/ol.19.001958.

We report a harmonically mode-locked erbium-doped fiber ring laser with short solitons. A phase modulator running asynchronously with the pulses provides pulse start-up, continuous background cleanup, and a new form of pulse timing stabilization. Steady-state operation of picosecond solitons...

Frequency-dependent mode size in broadband Kerr-lens mode locking.

Optics letters

Cundiff ST, Knox WH, Ippen EP, Haus HA.
PMID: 19876117
Opt Lett. 1996 May 01;21(9):662-4. doi: 10.1364/ol.21.000662.

Examination of the output beam size from a 10-fs Kerr-lens mode-locked Ti:sapphire laser reveals a strong spectral dependence. These results provide insight into the details of the mode-locking mechanisms and suggest reasons for the current limitations on the shortest...

Carrier-envelope phase dynamics of octave-spanning dispersion-managed Ti: sapphire lasers.

Optics express

Sander MY, Ippen EP, Kärtner FX.
PMID: 20389506
Opt Express. 2010 Mar 01;18(5):4948-60. doi: 10.1364/OE.18.004948.

The carrier-envelope phase dynamics of few-cycle octave-spanning Ti:sapphire lasers are analyzed based on a numerical one-dimensional dispersion-managed laser model. The dominant contribution to the carrier-envelope phase shift with respect to intracavity energy arises from the asymmetric impact of self-steepening...

Self-switching of optical pulses in dispersion-imbalanced nonlinear loop mirrors.

Optics letters

Wong WS, Namiki S, Margalit M, Haus HA, Ippen EP.
PMID: 18185778
Opt Lett. 1997 Aug 01;22(15):1150-2. doi: 10.1364/ol.22.001150.

We report a novel nonlinear filter that transmits and shortens incident pulses while rejecting cw background as well as resonant continuum. A relative extinction of 22dB is reported for the cw background.

Quantum-limited noise performance of a mode-locked laser diode.

Optics letters

Jiang LA, Grein ME, Ippen EP, McNeilage C, Searls J, Yokoyama H.
PMID: 18007712
Opt Lett. 2002 Jan 01;27(1):49-51. doi: 10.1364/ol.27.000049.

Low-noise operation of a 9-GHz hybridly mode-locked laser diode is demonstrated. The integrated timing jitter was 47 fs (10 Hz to 10 MHz) and 86 fs (10 Hz to 4.5 GHz), with a pulse width of 6.7 ps. The...

Generation of 90-nJ pulses with a 4-MHz repetition-rate Kerr-lens mode-locked Ti:Al(2)O(3) laser operating with net positive and negative intracavity dispersion.

Optics letters

Cho SH, Kärtner FX, Morgner U, Ippen EP, Fujimoto JG, Cunningham JE, Knox WH.
PMID: 18040385
Opt Lett. 2001 Apr 15;26(8):560-2. doi: 10.1364/ol.26.000560.

We demonstrate the generation of high-energy pulses by using a low-repetition-rate Kerr-lens mode-locked laser. Repetition rates as low as 4 MHz were achieved with a long, multiple-pass cavity and a semiconductor saturable Bragg reflector. The laser generated pulses of...

Femtosecond optical ranging in biological systems.

Optics letters

Fujimoto JG, De Silvestri S, Ippen EP, Puliafito CA, Margolis R, Oseroff A.
PMID: 19730562
Opt Lett. 1986 Mar 01;11(3):150. doi: 10.1364/ol.11.000150.

No abstract available.

Measurement of the Raman gain spectrum of optical fibers.

Optics letters

Dougherty DJ, Kärtner FX, Haus HA, Ippen EP.
PMID: 19855787
Opt Lett. 1995 Jan 01;20(1):31-3. doi: 10.1364/ol.20.000031.

The stimulated Raman gain spectrum of optical fibers has been measured down to 6 cm(-1) by means of short pulses. Results for parallel and perpendicular polarizations are reported. With this technique, we observe spectral oscillations arising from a Brillouin...

Showing 25 to 36 of 360 entries