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Papers by A. Chavez-Pirson

Optical Engineering, 1989

Efficient light coupling into and out of nonlinear etalons is achieved by using direct fiber-etal... more Efficient light coupling into and out of nonlinear etalons is achieved by using direct fiber-etalon-fiber interfaces. This technique can be used with etalons operating in both transmission and reflection. The improved uniformity of the etalons having mirrors grown by molecular beam epitaxy allows this technique to be extended to interface fiber arrays with many optical logic gates. Some simple analysis and possible applications of optical fiber interconnects in a digital optical system are presented.

Introduction: In this presentation, we describe work to develop the novel laser subsystem of the ... more Introduction: In this presentation, we describe work to develop the novel laser subsystem of the CODEX Chemistry, Organics and Dating EXperiment envisioned for landed lunar and Mars missions [see abstract How to Acquire a Successful In-Situ Date: CODEX Mission Design]. The CODEX instrument is designed to measure the age of rocks on the lunar surface by the Rubidium-Strontium (Rb-Sr) geochronology system, and in the future, the Pb-Pb isotope method [see abstract Multianalytical Science with the CODEX In-situ Dating Spectrometer]. The instrument design [see abstract CDEX/CODEX Instrumentation for Insitu Dating on the Moon and Mars] is relatively mature, comprised of high-TRL Command and Data Handling (C&DH), electronics, sample handling, mass spectrometer, and mid-TRL laser system (Fig. 1). Instrument: The laser sub-system relies on seven independent lasers producing six different and distinct wavelengths intersecting at or near the surface of a lunar rock sample (Fig. 2). First, a 26...

Fiber Lasers IX: Technology, Systems, and Applications, 2012

Holmium (Ho3+)-doped ZBLAN glasses have been investigated for the purpose of achieving efficient ... more Holmium (Ho3+)-doped ZBLAN glasses have been investigated for the purpose of achieving efficient fiber lasers at 1.2 μm. Because of the long lifetime of the upper laser level and the small phonon energy in Ho3+-doped ZBLAN glasses, strong fluorescence at 1.2 μm that usually cannot be observed in Ho-doped silica glass has been measured. Fluorescence of 1 mol%, 3 mol%, and 6 mol% Ho3+-doped ZBLAN glasses are reported. The effect of cerium and terbium ions on the emission of Ho3+-doped ZBLAN glass has also been studied. Obstacles to achieving an efficient Ho3+-doped ZBLAN laser are analyzed and discussed. In studies of a commercial Ho3+-doped ZBLAN fiber laser, it was found that the 3 μm four-energy-level laser can easily overwhelm the 1.2 μm laser, which is a three-energy-level system having the same upper laser level with the 3 μm laser. In order to effectively suppress the competiting 3 μm transition, advanced Ho3+-doped ZBLAN fiber has been designed and fabricated for 1.2 μm fiber lasers. Fiber lasers at 1.2 μm using the new Ho3+-doped ZBLAN fiber have been developed. Our experiments demonstrate that the new Ho3+-doped ZBLAN fiber is an efficient gain medium for lasers at 1.2 μm.

We demonstrate image amplification with a 19-pixel optical image amplifier array based on high ga... more We demonstrate image amplification with a 19-pixel optical image amplifier array based on high gain per unit length Yb³⁺-doped phosphate glass optical fiber. The 19 pixels of the image amplifier provide spatially uniform image amplification whose gain can reach 30 dB/pixel or more with a fiber length of 10 cm. This image amplifier responds quickly to changes in the image position – with potential for GHz-level frame rates. This unique approach for image amplification offers low noise, high gain, and wide field of view in a compact fiber-based device.

Conference on Lasers and Electro-Optics 2010, 2010

Journal of Lightwave Technology, 2012

Applied Physics Letters, 1986

SPIE Proceedings, 1988

ABSTRACT

Applied Optics, 1986

... Phys. Lett. 41, 221 (1982). 2. JL Jewell, YH Lee, M. Warren, HM Gibbs, N. Peyghambar-ian, AC ... more ... Phys. Lett. 41, 221 (1982). 2. JL Jewell, YH Lee, M. Warren, HM Gibbs, N. Peyghambar-ian, AC Gossard, and W. Wiegmann, "3-pJ, 82-MHz Optical Logic Gates in a Room-Temperature GaAs-AlGaAs Multiple-Quantum-Well Etalon," Appl. Phys. Lett. 46, 918 (1985). ...

Optical Engineering, 1989

Efficient light coupling into and out of nonlinear etalons is achieved by using direct fiber-etal... more Efficient light coupling into and out of nonlinear etalons is achieved by using direct fiber-etalon-fiber interfaces. This technique can be used with etalons operating in both transmission and reflection. The improved uniformity of the etalons having mirrors grown by molecular beam epitaxy allows this technique to be extended to interface fiber arrays with many optical logic gates. Some simple analysis and possible applications of optical fiber interconnects in a digital optical system are presented.

Introduction: In this presentation, we describe work to develop the novel laser subsystem of the ... more Introduction: In this presentation, we describe work to develop the novel laser subsystem of the CODEX Chemistry, Organics and Dating EXperiment envisioned for landed lunar and Mars missions [see abstract How to Acquire a Successful In-Situ Date: CODEX Mission Design]. The CODEX instrument is designed to measure the age of rocks on the lunar surface by the Rubidium-Strontium (Rb-Sr) geochronology system, and in the future, the Pb-Pb isotope method [see abstract Multianalytical Science with the CODEX In-situ Dating Spectrometer]. The instrument design [see abstract CDEX/CODEX Instrumentation for Insitu Dating on the Moon and Mars] is relatively mature, comprised of high-TRL Command and Data Handling (C&DH), electronics, sample handling, mass spectrometer, and mid-TRL laser system (Fig. 1). Instrument: The laser sub-system relies on seven independent lasers producing six different and distinct wavelengths intersecting at or near the surface of a lunar rock sample (Fig. 2). First, a 26...

Fiber Lasers IX: Technology, Systems, and Applications, 2012

Holmium (Ho3+)-doped ZBLAN glasses have been investigated for the purpose of achieving efficient ... more Holmium (Ho3+)-doped ZBLAN glasses have been investigated for the purpose of achieving efficient fiber lasers at 1.2 μm. Because of the long lifetime of the upper laser level and the small phonon energy in Ho3+-doped ZBLAN glasses, strong fluorescence at 1.2 μm that usually cannot be observed in Ho-doped silica glass has been measured. Fluorescence of 1 mol%, 3 mol%, and 6 mol% Ho3+-doped ZBLAN glasses are reported. The effect of cerium and terbium ions on the emission of Ho3+-doped ZBLAN glass has also been studied. Obstacles to achieving an efficient Ho3+-doped ZBLAN laser are analyzed and discussed. In studies of a commercial Ho3+-doped ZBLAN fiber laser, it was found that the 3 μm four-energy-level laser can easily overwhelm the 1.2 μm laser, which is a three-energy-level system having the same upper laser level with the 3 μm laser. In order to effectively suppress the competiting 3 μm transition, advanced Ho3+-doped ZBLAN fiber has been designed and fabricated for 1.2 μm fiber lasers. Fiber lasers at 1.2 μm using the new Ho3+-doped ZBLAN fiber have been developed. Our experiments demonstrate that the new Ho3+-doped ZBLAN fiber is an efficient gain medium for lasers at 1.2 μm.

We demonstrate image amplification with a 19-pixel optical image amplifier array based on high ga... more We demonstrate image amplification with a 19-pixel optical image amplifier array based on high gain per unit length Yb³⁺-doped phosphate glass optical fiber. The 19 pixels of the image amplifier provide spatially uniform image amplification whose gain can reach 30 dB/pixel or more with a fiber length of 10 cm. This image amplifier responds quickly to changes in the image position – with potential for GHz-level frame rates. This unique approach for image amplification offers low noise, high gain, and wide field of view in a compact fiber-based device.

Conference on Lasers and Electro-Optics 2010, 2010

Journal of Lightwave Technology, 2012

Applied Physics Letters, 1986

SPIE Proceedings, 1988

ABSTRACT

Applied Optics, 1986

... Phys. Lett. 41, 221 (1982). 2. JL Jewell, YH Lee, M. Warren, HM Gibbs, N. Peyghambar-ian, AC ... more ... Phys. Lett. 41, 221 (1982). 2. JL Jewell, YH Lee, M. Warren, HM Gibbs, N. Peyghambar-ian, AC Gossard, and W. Wiegmann, "3-pJ, 82-MHz Optical Logic Gates in a Room-Temperature GaAs-AlGaAs Multiple-Quantum-Well Etalon," Appl. Phys. Lett. 46, 918 (1985). ...