Dr. Siamak Forouhar Profile

Dr. Siamak Forouhar

Deputy Director Microdevices Lab at Jet Propulsion Lab

SPIE Involvement:

Author

Publications (21)

Proceedings Article | 12 July 2023 Open Access

All-semiconductor continuous-wave volumetric ranging for spaceborne differential absorption lidar

Simone Bianconi, John Dykema, Eric Kittlaus, Mahmood Bagheri, Siamak Forouhar

Proceedings Volume 12777, 127772S (2023) https://doi.org/10.1117/12.2690302

KEYWORDS: Ranging, Backscatter, Tunable filters, LIDAR, Equipment, Continuous wave operation, Modulation, Profiling, Optical filters, Transmitters

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Proceedings Article | 3 October 2022 Presentation

Ultra-wideband photonic spectrometer for PBL sensing

Mehmet Ogut, Sidharth Misra, Shannon Brown, Siamak Forouhar, Janusz Murakowski, Michael Gehl

Proceedings Volume 12232, 1223207 (2022) https://doi.org/10.1117/12.2632853

KEYWORDS: Spectroscopy, Photonic integrated circuits, Photodetectors, Ocean optics, Microwave radiation, Atmospheric modeling, Waveguides, Stars, Solar energy, Radio optics

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Proceedings Article | 12 July 2019 Open Access

2.0 micron wavelength injection seed semiconductor laser for lidar transmitter for global-scale measurements of CO2

Siamak Forouhar, Ryan Briggs, Mahmood Bagheri, Clifford Frez, Mathieu Fradet

Proceedings Volume 11180, 111800U (2019) https://doi.org/10.1117/12.2535949

KEYWORDS: Semiconductor lasers, Fabry–Perot interferometers, LIDAR, Transmitters, Continuous wave operation, Waveguides, Carbon dioxide lasers, Carbon dioxide, Absorption, High power lasers

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Proceedings Article | 12 July 2019 Open Access

Space- and ground-based non-accelerated long lifetime data for ruggedized commercial NPRO lasers

C. Asbury, L. Dorsky, N. Nerheim, S. Forouhar, D. Rider, E. Chu, B. Fisher, R. Valencia, M. Montero, T. Kane

Proceedings Volume 11180, 1118019 (2019) https://doi.org/10.1117/12.2535964

KEYWORDS: Semiconductor lasers, Diodes, Accelerated life testing, Fiber lasers, Space operations, Nd:YAG lasers, Laser stabilization, Laser systems engineering, Semiconducting wafers, Laser applications

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Proceedings Article | 18 September 2018 Presentation + Paper

The Lunar Flashlight CubeSat instrument: a compact SWIR laser reflectometer to quantify and map water ice on the surface of the moon

Udo Wehmeier, Quentin Vinckier, R. Glenn Sellar, Christopher Paine, Paul Hayne, Mahmood Bagheri, Mina Rais-Zadeh, Siamak Forouhar, Jessica Loveland, Jacob Shelton

Proceedings Volume 10769, 107690H (2018) https://doi.org/10.1117/12.2320643

KEYWORDS: Receivers, Sensors, Electronics, Space operations, Signal to noise ratio, Reflectometry, Mirrors, Short wave infrared radiation

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Proceedings Article | 10 March 2016 Paper

Regrowth-free mid-infrared distributed feedback quantum cascade lasers with sub-watt power consumption

Ryan Briggs, Clifford Frez, Mathieu Fradet, Siamak Forouhar, Romain Blanchard, Christian Pflügl

Proceedings Volume 9767, 97671S (2016) https://doi.org/10.1117/12.2213990

KEYWORDS: Quantum cascade lasers, Laser development, Infrared spectroscopy, Infrared lasers, Infrared radiation, Absorption spectroscopy, Target detection, Dielectrics, Semiconducting wafers, Mid-IR, Continuous wave operation, Laser damage threshold, Absorption, Spectrometers, Waveguides

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Proceedings Article | 7 March 2016 Paper

First demonstration of single-mode distributed feedback type-I GaSb cascade diode laser emitting near 2.9 um

Mathieu Fradet, Takashi Hosoda, Clifford Frez, Leon Shterengas, Stanley Sander, Siamak Forouhar, Gregory Belenky

Proceedings Volume 9767, 97670U (2016) https://doi.org/10.1117/12.2213224

KEYWORDS: Semiconductor lasers, Quantum wells, Gallium antimonide, Sensors, Waveguides, Absorption, Diodes, Heterojunctions, Gallium indium arsenide antimonide phosphide, Copper

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Proceedings Article | 17 February 2011 Paper

Type-I GaSb based single lateral mode diode ridge lasers operating at room temperature in 3.1-3.2 μm spectral region

G. Tsvid, T. Hosoda, J. Chen, G. Kipshidze, L. Shterengas, C. Frez, A. Soibel, S. Forouhar, G. Belenky

Proceedings Volume 7953, 79531Q (2011) https://doi.org/10.1117/12.875307

KEYWORDS: Dielectrics, Waveguides, Continuous wave operation, Metals, Semiconductor lasers, Gallium antimonide, Near field optics, Laser processing, Diodes

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Proceedings Article | 24 January 2011 Paper

Low power consumption lasers for next generation miniature optical spectrometers for trace gas analysis

S. Forouhar, C. Frez, K. J. Franz, A. Ksendzov, Y. Qiu, K. A. Soibel, J. Chen, T. Hosoda, G. Kipshidze, L. Shterengas, G. Belenky

Proceedings Volume 7945, 79450M (2011) https://doi.org/10.1117/12.871565

KEYWORDS: Semiconductor lasers, Quantum cascade lasers, Space operations, Spectrometers, Absorption, Laser development, Quantum efficiency, Reliability, Chemical analysis, Continuous wave operation

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Proceedings Article | 24 January 2011 Paper

Compact spectroscopic sensor for air quality monitoring in spacecrafts

Benjamin Scherer, Hakim Hamid, Jürgen Rosskopf, Siamak Forouhar

Proceedings Volume 7945, 79450S (2011) https://doi.org/10.1117/12.875237

KEYWORDS: Sensors, Carbon monoxide, Oxygen, Absorption, Gases, Vertical cavity surface emitting lasers, Space operations, Calibration, Molecules, Nitrogen

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Proceedings Article | 26 September 2007 Paper

High-reliability pump module for non-planar ring oscillator laser

Duncan Liu, Yueming Qiu, Daniel Wilson, Serge Dubovitsky, Siamak Forouhar

Proceedings Volume 6681, 66810Z (2007) https://doi.org/10.1117/12.730898

KEYWORDS: Semiconductor lasers, Fiber lasers, Reliability, Multimode fibers, Fiber Bragg gratings, Diodes, Fiber coupled lasers, Laser development, Oscillators, Lasers

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Proceedings Article | 12 January 2005 Paper

Semiconductor lasers beyond the fiber optics telecommunication wavelength

Alexander Soibel, Kamjou Mansour, Andrew Shapiro, Gary Spiers, Siamak Forouhar

Proceedings Volume 5653, (2005) https://doi.org/10.1117/12.578946

KEYWORDS: Quantum cascade lasers, Laser development, Semiconductor lasers, Mid-IR, Continuous wave operation, Laser applications, Electrons, Pulsed laser operation, Telecommunications, Active optics

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Proceedings Article | 14 April 1999 Paper

Semiconductor laser linewidth measurements for space interferometry applications

David Dougherty, Roman Gutierrez, Serge Dubovitsky, Siamak Forouhar

Proceedings Volume 3626, (1999) https://doi.org/10.1117/12.345421

KEYWORDS: Semiconductor lasers, Fiber lasers, Solids, Optical filters, Optical isolators, Interferometry, Chlorine, Metrology, Space telescopes, Collimation

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Proceedings Article | 3 November 1998 Paper

Recent results with the coupled opto-electronic oscillator

X. Yao, Lute Maleki, Chi Wu, Lawrence Davis, Siamak Forouhar

Proceedings Volume 3463, (1998) https://doi.org/10.1117/12.330392

KEYWORDS: Modulators, Optoelectronics, Pulsed laser operation, Mode locking, Semiconductor lasers, Oscillators, Interference (communication), Picosecond phenomena, Spectrum analysis, Microwave radiation

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Proceedings Article | 19 August 1998 Paper

Multiwavelength arrays of mode-locked lasers for WDM applications

Lawrence Davis, Martin Young, David Dougherty, Sam Keo, Richard Muller, Paul Maker, Siamak Forouhar

Proceedings Volume 3547, (1998) https://doi.org/10.1117/12.319641

KEYWORDS: Mode locking, Wavelength division multiplexing, Telecommunications, Interference (communication), Picosecond phenomena, Laser applications, Fiber lasers, Clocks, Single sideband modulation, Time division multiplexing

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Proceedings Article | 19 August 1998 Paper

Semiconductor laser-based optoelectronics oscillators

X. Yao, Lute Maleki, Chi Wu, Lawrence Davis, Siamak Forouhar

Proceedings Volume 3547, (1998) https://doi.org/10.1117/12.319644

KEYWORDS: Semiconductor lasers, Modulators, Optoelectronics, Oscillators, Mode locking, Pulsed laser operation, Interference (communication), Spectrum analysis, Picosecond phenomena, Photonics

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Proceedings Article | 19 August 1998 Paper

Monolithically integrated InGaAsP/InP laser/modulator using identical layer approach for opto-electronic oscillator

Chi Wu, Sam Keo, X. Yao, Tasha Turner, Lawrence Davis, Martin Young, Lute Maleki, Siamak Forouhar

Proceedings Volume 3547, (1998) https://doi.org/10.1117/12.319632

KEYWORDS: Modulators, Optoelectronics, Oscillators, Microwave radiation, Semiconductor lasers, Modulation, Aerospace engineering, Continuous wave operation, Cladding, Laser applications

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Proceedings Article | 1 May 1996 Paper

InP-based ridge waveguide lasers for wavelength division multiplexing applications

Lawrence Davis, Mohammad Mazed, Sam Keo, James Singletery, Timothy Vang, Siamak Forouhar

Proceedings Volume 2690, (1996) https://doi.org/10.1117/12.238927

KEYWORDS: Wavelength division multiplexing, Etching, Tolerancing, Semiconducting wafers, Waveguide lasers, Waveguides, Heterojunctions, Control systems, Semiconductor lasers, Transmitters

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SPIE Journal Paper | 1 June 1994

Optical links for cryogenic focal plane array readout

Alan Johnston, Duncan Liu, Siamak Forouhar, George Lutes, Joseph Maserjian, Eric Fossum

OE, Vol. 33, Issue 06, (June 1994) https://doi.org/10.1117/12.10.1117/12.169726

KEYWORDS: Modulators, Staring arrays, Waveguides, Modulation, Cryogenics, Receivers, Interference (communication), Interfaces, Fiber optics, Analog electronics

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Proceedings Article | 20 October 1993 Paper

Optical links for cryogenic focal plane array readout

Alan Johnston, Duncan Liu, Siamak Forouhar, George Lutes, Joseph Maserjian, Eric Fossum

Proceedings Volume 1946, (1993) https://doi.org/10.1117/12.158689

KEYWORDS: Modulators, Modulation, Staring arrays, Interference (communication), Waveguides, Receivers, Cryogenics, Interfaces, Signal detection, Sensors

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Proceedings Article | 1 July 1991 Paper

High-power single-element pseudomorphic InGaAs/GaAs/AlGaAs single-quantum-well lasers for pumping Er-doped fiber amplifiers

Anders Larsson, Siamak Forouhar, Jeffrey Cody, Robert Lang, Peter Andrekson

Proceedings Volume 1418, (1991) https://doi.org/10.1117/12.43813

KEYWORDS: Fiber amplifiers, Fiber lasers, Semiconductor lasers, Laser applications, Reliability, Quantum wells, Quantum efficiency, Waveguides, Reflectivity, Optical pumping

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