Contributing to Laser Diode chip production efficiency improvement
Vienna, Austria – April 13, 2023 – Anritsu Corporation introduces the measurement function (MS9740B-020) for Optical Spectrum Analyzer MS9740B that evaluates a pulsed Laser Diode (LD) chip. New solution reduces the test time for pulsed LD chip, contributing to improved production efficiency of high-power LD chip.
Development Background
LD chip manufacturers and optical equipment vendors evaluate the optical spectrum of LD chips during manufacturing. Market demand for high-power LD chips is driven by higher communication bit rates and longer LiDAR detection ranges. In addition, new use cases, such as External Laser Small Pluggable (ELSFP) modules for Co-packaged Optics applications, are expected to accelerate demand. The continuous wave (CW) output from a high-power LD chip suffers power drift and wavelength shift as the chip temperature rises. This is prevented by suppressing the temperature rise by using pulsed LD chips. However, current testing of pulsed LD chips during production takes longer because an external trigger signal is required to synchronize with the pulsed LD chip.
Rugged Design for Any Environment
- Reduced tact time for pulsed LD chips
The new MS97040B-020 solution accelerates optical spectrum evaluation by eliminating the need for a trigger signal.
- Assured measurement reproducibility for even high-power LD chips
This solution assures measurement reproducibility of ±1.4 dB* for Side Mode Suppression Ratio (SMSR). Low SMSR variation improves the LD chip yield and helps production efficiency.
*±1.8 dB with MS9740B-020 installed.
About Anritsu
Anritsu Corporation (www.anritsu.com), a global provider of innovative communications test and measurement solutions for 128 years. Anritsu’s philosophy engages customers as true partners to help develop wireless, optical, microwave/RF, and digital solutions for R&D, manufacturing, installation, and maintenance applications, as well as multidimensional service assurance solutions for network monitoring and optimization. Anritsu also provides precision microwave/RF components, optical devices, and high-speed electrical devices for communication products and systems. The company develops advanced solutions for 5G, M2M, IoT, as well as other emerging and legacy wireline and wireless communication markets. With offices throughout the world, Anritsu has approximately 4,000 employees in over 90 countries.
