23 February 1987 A High-Frequency Laser Package For Microwave Optical Communications
Author Affiliations +
Proceedings Volume 0716, High Frequency Optical Communications; (1987) https://doi.org/10.1117/12.937466
Event: Cambridge Symposium-Fiber/LASE '86, 1986, Cambridge, MA, United States
The design and performance characteristics of a fiber-coupled microwave laser package suitable for optical transmission of broadband or RF signals are described. The package contains a GTE 15-GHz, VPR-BH diode laser coupled to a single-mode fiber; an InGaAs edge detector for monitoring rear facet power; temperature stabilizing components; and microstrip con-nections to the laser. The laser is placed in series with a 5041 transmission line that is terminated externally using a commercially available precision high-frequency load. Major features of the package include a laser carrier design that simplifies internal component assembly while maintaining stable laser-to-fiber alignment to ambients of 60°C, a flexible internal microstrip configuration that relieves expansion stresses at temperature extremes, a hermetically sealed environment free of organic com-pounds, and a reconfigurable RF port that is externally compatible with both coaxial and microstrip transmission media. Broadband performance of the package is currently dominated by the laser's 15-GHz frequency response. Circuit simula-tions of the internal microstrip and parasitic reactances indicate that inherent package bandwidth exceeds 20 GHz. Though overall bandwidth is dominated by the laser, packaging-related in-band ripple is affected by the internal microstrip, amounting to approximately 0.75 dB p/p. A variation of the basic package design incorporates a narrowband reactive impedance-matching network in close proximity to the laser for transferring maximum RF power while maintaining a VSWR that is less than 1.5:1.
© (1987) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
L W Ulbrichta, L W Ulbrichta, J Schlafer, J Schlafer, } "A High-Frequency Laser Package For Microwave Optical Communications", Proc. SPIE 0716, High Frequency Optical Communications, (23 February 1987); doi: 10.1117/12.937466; https://doi.org/10.1117/12.937466


Laser packaging for single-mode fiber systems
Proceedings of SPIE (December 01 1992)
Status Of Fibre Optic Research In France
Proceedings of SPIE (July 23 1976)
High-Speed Optical Modulation Techniques
Proceedings of SPIE (October 28 1985)
Application of microholographic lens in fiber coupling
Proceedings of SPIE (June 03 2002)
Studies in optimal configuration of the LTP
Proceedings of SPIE (September 01 2010)

Back to Top