RF and mm-Wave Photonics at Sandia National Laboratories
RF and mm-wave photonic devices and circuits have been developed at Sandia National Laboratories for applications ranging from RF optical data links to optical generation of mm-wave frequencies. This talk will explore recent high-speed photonics technology developments at Sandia including: (1) A monolithic optical integrated circuit for all-optical generation of mm-waves. Using integrated mode-locked diode lasers, amplifiers, and detectors, frequencies between 30 GHz and 90 GHz are generated by a single monolithic (Al,Ga)As optical circuit less than 2mm in its largest dimension. (2) Development of polarization-maintaining, low-insertion-loss, low v-pi, Mach-Zehnder interferometer (MZI) modulators with DC-to-potentially-K-band modulation bandwidth. New low-loss polarization-maintaining waveguide designs using binary alloys have been shown to reduce polarization crosstalk in undoped (Al,Ga)As waveguides, yielding high extinction ratio (>40dB) and low on-chip loss (<6dB) in Mach-Zehnder interferometers. RF drive voltage is reduced through use of 45rnrn-active length devices with modulator sensitivity, v-pi, less than 3V.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 8800
- Report Number(s):
- SAND99-1746J; TRN: AH200117%%163
- Journal Information:
- Proceedings of SPIE, vol 3795 Terahertz and Gigahertz Photonics, Other Information: Submitted to Proceedings of SPIE, vol 3795 Terahertz and Gigahertz Photonics; PBD: 8 Jul 1999
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
AMPLIFIERS
INTEGRATED CIRCUITS
LASERS
MACH-ZEHNDER INTERFEROMETER
MODULATION
POLARIZATION
SANDIA NATIONAL LABORATORIES
WAVEGUIDES
ALUMINIUM ARSENIDES
GALLIUM ARSENIDES
TERAHERTZ AND GIGAHERTZ PHOTONIC COMPONENTS
INTEGRATED OPTICS
DIODE LASER
MODE-LOCKING
OPTICAL WAVEGUIDE
ALGAAS
MM-WAVE
OPTOELECTRONIC INTEGRATED CIRCUIT
OEIC
OPTICAL MODULATOR