Optical: systems and elements – Optical modulator – Light wave directional modulation
Reexamination Certificate
2008-05-12
2009-08-18
Thompson, Timothy J (Department: 2873)
Optical: systems and elements
Optical modulator
Light wave directional modulation
C359S300000, C359S302000, C359S279000
Reexamination Certificate
active
07576907
ABSTRACT:
Simultaneous amplitude and phase control of ultrafast laser pulses using a single, linear (one-dimensional) liquid crystal spatial light modulator is described. Amplitude shaping is accomplished by writing a high-frequency phase grating having a spatial period much smaller than the spectral focus (over-sampling), onto the modulator, and diffracting away selected frequencies in a controllable manner, while spectral phase control is imparted by adding an appropriate slow phase bias to the modulator. The close pixel spacing, large number of pixels, and small footprint of the reflective spatial light modulator employed with an angular wavelength dispersive element in a folded Martinez stretcher, enables a simple and compact apparatus to be achieved. The high reflectivity of the spatial light modulator results in a highly efficient pulse shaper when either a prism or diffractive grating is used for the angular dispersive element. The use of a transmissive spatial light modulator in an unfolded Martinez stretcher configuration is also described.
REFERENCES:
patent: 2005/0232317 (2005-10-01), Dantus et al.
Eugene Frumker and Yaron Silberberg, “Phase and Amplitude Pulse Shaping with Two-Dimensional Phase-Only Spatial Light Modulators,” J. Opt. Soc. Am. B 24, 2940-2947 (2007).
A.M. Weiner, “Femtosecond Optical Pulse Shaping and Processing,” Prog. Quantum Electron. 19, 161-237 (1995).
S. Akturk et al., “Extremely Simple Single-Prism Ultrashort-Pulse Compressor,” Opt. Express 14, 10,101-10,108 (2006).
D.J. Kane and R. Trebino, “Characterization of Arbitrary Femtosecond Pulses Using Frequency-Resolved Optical Gating,” IEEE J. Quantum Electron. 29, 571-579 (1993).
D.J. Kane, “Real-Time Measurement of Ultrashort Laser Pulses Using Principal Component Generalized Projections,” IEEE J. Sel. Top. Quantum Electron. 4. 278-284 (1998).
P. Schlup et al., “Dispersion-Balancing of Variable-Delay Monolithic Pulse Splitters,” Appl. Opt. 46, 5967-5973 (2007).
M. Takeda et al., “Fourier-Transform Method of Fringe-Pattern Analysis for Computer-Based Topography and Interferometry,” J. Opt. Soc. Am. 72, 156-160 (1982).
J. Wilson et al., “Ultrafast Phase and Amplitude Pulse Shaping with a Single, One-Dimensional, High-Resolution Phase Mask,” Optics Express, vol. 15., No. 14, (2007).
M. Wefers et al., “Generation of High-Fidelity Programmable Ultrafast Optical Waveforms,” Optics Letters, vol. 20, No. 9 (1995).
C. Vozzi et al., “High-Energy, Few-Optical-Cycle Pulses at 1.5 with Passive Carrier-Envelope Phase Stabilization,” Optics Express, vol. 14, No. 21 (2006).
J. Vaughan et al., “Automated Two-Dimensional Femtosecond Pulse Shaping,” J. Opt. Soc. Am. B., vol. 19, No. 10, 2489-2495 (2002).
J. Vaughan et al., “Diffraction-Based Femtosecond Pulse Shaping with a Two-Dimensional Spatial Light Modulator,” Optics Letters, vol. 30, No. 3, 323-325 (2005).
J. Vaughan et al., “Automated Spatiotemporal Diffraction of Ultrashort Laser Pulses,” Optics Letters, vol. 28, No. 23, 2408-2410 (2003).
C. Dorrer et al., “Design and Analysis of Binary Beam Shapers Using Error Diffusion,” J. Opt. Soc. Am. B., vol. 24, No. 6, 1268-1275 (2007).
T. Feurer et al., “Multidimensional Control of Femtosecond Pulses by use of a Programmable Liquid-Crystal Matrix,” Optics Letters, vol. 27, No. 8, 652-654 (2002).
O. Masihzadeh et al., “Complete Polarization State Control of Ultrafast Laser Pulses with a Single Linear Spatial Light Modulator,” Optics Express, vol. 15., No. 26 (2007).
E. Frumker et al., “Femtosecond Pulse-Shape Modulation at Nanosecond Rates,” Optics Letters, vol. 30., No. 20, 2796-2798 (2005).
V. Bagnoud et al., “Independent Phase and Amplitude Control of a Laser Beam by Use of a Single-Phase-Only Spatial Light Modulator,” Optics Letters, vol. 29., No. 3 (2004).
F. M. Reinert et al., “Shaping a Femtosecond Pulse with a Programmable Thermo-Optically Driven Phase Modulator,” Optics Express, vol. 15, No. 7, (2007).
E. Frumker et al., “Femtosecond Pulse Shaping Using a Two-Dimensional Liquid-Crystal Spatial Light Modulator,” Optics Letters, vol. 32, No. 11, 1384-1386 (2007).
Bartels Randy A.
Schlup Philip
Wilson Jesse W.
Cochran Freund & Young LLC
Colorado State University Research Foundation
Freund Samuel M.
Thompson Timothy J
LandOfFree
Phase and amplitude light pulse shaping using a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Phase and amplitude light pulse shaping using a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase and amplitude light pulse shaping using a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4096267