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10-20 Gb/s Modulators

Low loss, extended bandwidth intensity modulators for OC-192 data rates and higher using Forward Error Correction (FEC)

(Eye diagrams measured for z-cut device)

Key Specifications

	Z-Cut Fixed pre-chirp	X-Cut Zero-chirp
Insertion Loss	< 3 dB (<2 dB opt)	<4 dB (<3 dB opt)
3 dB Bandwidth	>10, >16, >20 GHz
Modulation Port Vpi (@ 1 GHz)	< 4 volts	< 5 volts (< 4V opt)
DC Bias Port Vpi (on a separate electrode)	< 10 volts
S11	< -10 dB
Optical Null Depth (@ DC)	> 20 dB (>30, >40, >50, >60 dB opt)
Optical Return Loss	> 50 dB
Alpha Chirp Factor	-0.7 ± 0.1	0.0 ± 0.1
Package Dimensions	3.48" x 0.35" x 0.35" (88.4 x 8.9 x 8.9 mm³) Smaller form factor housings available
RF Connector	female K
Operating Wavelength	1.55 microns (C- and L-Band) (0.8, 1.06, 1.3 microns available)
Input Fiber	PM
Output Fiber	SM or PM
Optical Connectors	FC/UPC standard (FC/APC & others available)
Options	Ultra-low insertion loss Dual-wavelength operation (1.3/1.55) Integrated monitor photodiode Integrated polarizer External RF termination port Integrated phase modulator Dual complementary outputs (1x2, 2x2) High Extinction Ratio

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All specifications subject to change without notice.

Senior Photonic System Engineer

DESCRIPTION: Design, optimize, fabricate, develop, and test ultra-low loss, ultra-high-speed (> 40GHz), very-wide-bandwidth photonic devices for fiber optical systems including modulators, polarization controllers, switches, large-scale optical Integrated Circuits (IC), and subsystems. Perform research in photonics devices and systems in support of research contracts from DARPA, Air Force, Navy, Army and MDA, using optical waveguide, Gaussian beam, ray tracing equation, optical matrix analysis, and other research methods. Design an RF (Radio Frequency) photonic fiber link and apply embedded interface protocols to portable, UWB (Ultra-Wide-Bandwidth), and low electrical power consumption photonic communication systems. Conduct photonic system design and performance optimization using optical design software including Matlab, RSOFT BMP, and AutoCAD. Design photomasks for Lithium Niobate-based guided-wave photonic devices in AutoCAD. Fabricate and assemble Lithium Niobate-based guided-wave photonic devices & sub-systems in a semiconductor cleanroom environment. Perform high-precision (six-axis optical alignment) photonic system measurement to achieve maximum input light coupling and maximum optical power output. Generate light beams with very-high degree of polarization purity, aided by polarimeter, for system-level characterization.

MINIMUM QUALIFICATIONS: M.S. degree in Photonics or Electrical Engineering with a specialization in Photonics, plus at least three (3) years of experience in designing, developing, and testing of ultra-high-speed, very-wide-bandwidth photonic devices, sub-systems, and systems; performing independent research in photonics with publication(s) or a clearly established project with project report(s); conducting photonic system design and performance optimization using Matlab, RSOFT BPM, and AutoCAD optical design software and tools; fabricating to produce novel geometrical structures for device design; designing photomasks for photonic devices using AutoCAD; fabricating and assembling Lithium Niobate-based guided-wave photonic devices & sub-systems in a semiconductor cleanroom environment; applying embedded interface protocols for photonic communication systems; performing high-precision (six-axis optical alignment) photonic system measurement; and generating light beams with very-high degree of polarization purity, aided by polarimeter, for system-level characterization. Experience may be gained concurrently.

MUST HAVE PROOF OF LEGAL AUTHORITY TO WORK IN THE UNITED STATES. Position in Redmond, Washington. Interested candidates must apply by mail to Human Resources at the address listed above.

EOSPACE, Inc. IS AN EQUAL OPPORTUNITY EMPLOYER. WE VALUE THE DIVERSITY OF OUR TEAM MEMBERS.

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EOSPACE Inc., 8711 148th Avenue NE, Redmond, WA 98052

Tel (425) 869-8673 Fax (425) 869-8872