Product

AR Coated Laser Diodes

・Anti-Reflecton (AR) coated LD products are fabricated with a designed reflectance of <0.1% on the front facet with Ushio's unique design and advanced film deposition technology.
・Compared to conventional coated Fabry-Perot LDs, the wide gain bandwidth makes them ideal for external cavity wavelength tunable lasers because they can be combined with diffraction gratings and interference filters to produce laser oscillations in specific wavelength modes with narrow linewidths. It can be widely used in applications for quantum technology (optical lattice clocks, laser cooling) and spectroscopy.
・We are offering three wavelengths for quantum technology, 671nm, 689nm, and 698nm. Ushio's chip has high reliable optical output power 200mW and  high temperature operation at 75°C, the gain peak of 10nm or more can be freely adjusted by temperature control.

 

	Product Standard coating		Product With AR coating
Wavelength (Atom)	Part number	Lasing wavelength	Part number	AR coating target wavelength	AR coated front facet target reflectivity
671nm(Li)	HL67011DG	671nm±3nm	HL67231DG	671nm	0.1%
689nm(Sr)	HL69001DG	690nm±5nm	HL69021DG	689nm	0.1%
698nm(Sr)	HL70021DG	700nm±3nm	HL70041DG	698nm	0.1%