Focuslight Launches LCS Series 980/1470nm Conduction-Cooled Diode Laser with High Power Output, Low Thermal Resistance and Low Smile

Semiconductor Review | Monday, January 13, 2025

Xi’an, China– Focuslight Technologies Inc., a global provider of high-power diode laser components and materials, laser optics components, and photonics application solutions, today launched its brand new LCS series 980/1470nm conduction-cooled diode laser. Featuring its outstanding performance on high power output, low thermal resistance and low smile, the new LCS series represents a significant breakthrough in high-power diode laser technology, offering cutting-edge solutions for various application fields including scientific research, laser equipment manufacturing, biomedical applications, precision ranging, and LiDAR systems.

Technical Innovation and Exceptional Performance

The newly launched LCS series with 100W output at 980nm and 30W output at 1470nm feature conduction cooling designs based on Focuslight’s proprietary bonding technology, which significantly enhanced the performance and reliability of GaAs and InP-based diode lasers. Compared to indium  soft solder or AuSn hard solder bonding techniques, our innovative bonding approach addresses various challenges such as thermoelectric migration, fatigue resistance and thermal resistance, achieving an ideal balance of low stress, low thermal resistance, and ultra-low Smile effects.

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The LCS Series employs GaAs and InP-based diode laser bar chips with a 20% fill factor, 19 emitters, and a cavity length of 2.0mm. The thermal rollover power reaches CW 180W@190A for 980nm products, and CW 50W@125A for 1470nm products, ensuring stable long-term operation even under conditions of wide pulse width (>100ms) and high duty cycle. Compared to conventional bonding methods, the innovative bonding technology used in the LCS Series improves the output power by over 30% and reduces thermal resistance by 20%, setting a new benchmark for performance and reliability of the diode laser products worldwide.

Ultra-Low Smile Effect for Superior Beam Quality

For bar-based diode lasers, the Smile effect refers to the bending or warping of the chip due to packaging-induced stress, which results in emitter misalignment along the straight line and significantly impacts downstream applications like beam shaping and fiber coupling. The LCS Series demonstrates exceptional control over the Smile effect, with an average Smile value of just 0.56µm, where over 90% of the Smile measurements below 1µm. This surpasses conventional bonding techniques, providing even greater flexibility and precision for optical design, enabling superior results in beam shaping and fiber coupling applications.

Focuslight is now offering samples and small-batch production for the LCS series 980nm/1470nm lasers. With flexible lead times and rapid customer support, we look forward to collaborating with our business partners and pushing the boundary of photonics technology.

Since its establishment, Focuslight has been dedicated to the research and development of fundamental photonics components and related application solutions. Our core technologies – which include eutectic bonding, thermal management, thermal stress control, interface materials and surface engineering, test analysis and diagnosis, line beam shaping, beam transformation, beam field homogenization, wafer-level synchronous structured laser optical manufacturing, wafer-level photolithography-RIE (reactive ion etching) precision optics manufacturing, imprint precision optics manufacturing, as well as wafer-level optics (WLO), stacking (WLS), and integration (WLI) – enable us to provide strong supports to our partner’s business.

By combining innovation, manufacturing excellence, and fast response, Focuslight is committed to becoming a globally trusted photonics solution provider, driving the growth and prosperity of the photonics industry worldwide.

 

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