New Lumentum SFF pump lasers have high power output, low consumption

Created March 21, 2019
Technologies and Products

Lumentum Holdings Inc has announced what it says is a breakthrough series of four advanced 980 nm single-mode pump lasers. This next-generation series employs an advanced chip that inherits Lumentum’s proprietary high-reliability technology supplying significantly higher output power and efficiency.

The series of single-mode pump lasers includes S32, S29, M31, and M29 devices. The S29 and M29 modules operate under semi-cooled conditions of 45°C and significantly reduce strain on thermoelectric coolers, providing customers with very low power consumption. The M31 module is a low power consumption small-form-factor packaged pump laser that generates 900 mW operating power. For applications requiring the highest operating power of 1000 mW, the company offers the S32 module cooled pump.

These modules meet various telecommunications industry requirements, including Telcordia GR-468-CORE for hermetic 980 nm pump modules. All four new pump laser series will start high-volume production in March 2019.

“The breakthrough 1100 mW output power, low power consumption, and reduced form factor will enable customers to deploy high power and high-density EDFAs into ROADM blades,” said Doug Alteen, Lumentum senior vice president, general manager, Telecom Transport (pictured). “Lumentum is supporting customers to meet their ever-growing demand for capacity and scalability driven by the C and C+L ROADM network evolution. This achievement is the result of continuous development of foundational Gallium Arsenide core chip technology. We concentrate on (the) high-reliability diode laser that serves diverse applications in telecommunications, industrial lasers, and 3D sensing.”

According to Victor Rossin, Lumentum Distinguished Technical Staff , the maximum kink-free power of the new pumps can reach 1100 mW, with improved efficiency by >30% compared to the previous  generation. “It significantly reduces power consumption of high power pump lasers in both 14-pin and 10-pin butterfly packages.”

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This article was written
by John Williamson

John Williamson is a freelance telecommunications, IT and military communications journalist. He has also written for national and international media, and been a telecoms advisor to the World Bank.