Photonic integrated circuits

Thomas L Koch, U. Koren

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The architecture and performance of two recently demonstrated photonic integrated circuits (PICs) are presented. One is a wavelength-division multiplexing (WDM) source comprising four discretely tunable MQW-DBR lasers which combine to a single MQW amplifier, providing a four-channel high-bit-rate WDM source with a single fiber coupling port. With a channel spacing of 25 angstrom, this PIC has demonstrated 36-km transmission of four simultaneous 2 Gb/s (8 Gb/s composite rate) pseudo-random NRZ intensity modulated channels with only a approximately 1.4 dB crosstalk penalty. Another device is a fully integrated MQW balanced heterodyne receiver PIC. The chip integrates a 4-section 60 angstrom continuously tunable MQW-DBR LO, a directional coupler switch, and two zero-bias MQW waveguide detectors. With the detectors SMA-connected directly to 50Ω commercial amplifiers, in balanced operation this PIC has demonstrated free space beam sensitivities of -42.3 dBm and -39.7 dBm at 108 Mb/s and 200 Mb/s, respectively, for coherent FSK pseudo-random NRZ data. Combined waveguide losses, radiation losses, internal inter-element coupling, and detector η on this chip are only 4.3 dB.

Original languageEnglish (US)
Title of host publicationLEOS Summer Top Integr Optoelectron
PublisherPubl by IEEE
Pages46-47
Number of pages2
StatePublished - 1990
Externally publishedYes
EventLEOS Summer Topical on Integrated Optoelectronics - Monterey, CA, USA
Duration: Jul 30 1990Aug 1 1990

Other

OtherLEOS Summer Topical on Integrated Optoelectronics
CityMonterey, CA, USA
Period7/30/908/1/90

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Photonics
Integrated circuits
Detectors
Wavelength division multiplexing
Electric losses
DBR lasers
Frequency shift keying
Directional couplers
Crosstalk
Waveguides
Switches
Radiation
Fibers
Composite materials

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Koch, T. L., & Koren, U. (1990). Photonic integrated circuits. In LEOS Summer Top Integr Optoelectron (pp. 46-47). Publ by IEEE.

Photonic integrated circuits. / Koch, Thomas L; Koren, U.

LEOS Summer Top Integr Optoelectron. Publ by IEEE, 1990. p. 46-47.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Koch, TL & Koren, U 1990, Photonic integrated circuits. in LEOS Summer Top Integr Optoelectron. Publ by IEEE, pp. 46-47, LEOS Summer Topical on Integrated Optoelectronics, Monterey, CA, USA, 7/30/90.
Koch TL, Koren U. Photonic integrated circuits. In LEOS Summer Top Integr Optoelectron. Publ by IEEE. 1990. p. 46-47
Koch, Thomas L ; Koren, U. / Photonic integrated circuits. LEOS Summer Top Integr Optoelectron. Publ by IEEE, 1990. pp. 46-47
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