Bookham has released an output power of 200W with a 10mm laser diode bar, which is a powerful continuous wave (CW) single bar product.
The new 200W bar – representing a 60 per cent power increase on the previous Bookham offering with the same footprint – is designed to enable manufacturers of direct diode laser systems to compete with fibre lasers and CO2 lasers in multi-kilowatt material processing applications.
The bar provides CW and hard pulse operation at a rated power of 200W and is designed on a micro-channel single-sided cooling configuration to allow low pitch of the stack. The new high power bar meets the need of direct diode and solid state laser system manufacturers for increased power with discrete piece parts and reduced complexity of optics. In line with scaling the power output to 200W, the efficiency of the device has been scaled to reduce heat dissipation, resulting in a wall plug efficiency of 65 per cent. The bar is available in wavelengths from 915nm to 980nm.
The front facet of the bar is protected against Catastrophic Optical Damage by the Bookham proprietary E2 mirror passivation process. Telecom grade AuSn (gold tin) hard solder makes the product suitable for demanding industrial and defence applications in CW and hard pulse operation mode.