Blue · CW · Datasheets & quote request

491 nm Blue Lasers

The 491 nm emission line operates in the Blue region of the optical spectrum. Our portfolio includes configurations across CW Lasers, supporting CW operation. Compare power levels, linewidth, stability, and package dimensions below.

3 models1 seriesquote after qualification

Key applications

Copper, gold and non-ferrous metal welding
Optogenetics (Channelrhodopsin-2 / ChR2 excitation)
Flow cytometry and multi-color fluorescence
Laser projection and optical displays
Underwater optical communication

Other Blue lines in catalog (19)

Explore all 400+ wavelengths →

440 nm 442 nm 444 nm 445 nm 447 nm 448 nm 450 nm 454 nm 455 nm 457 nm 460 nm 462 nm 465 nm 470 nm 473 nm 480 nm 483 nm 484 nm 488 nm

Popular benchmark wavelengths

266 nm 355 nm 405 nm 450 nm 488 nm 515 nm 520 nm 532 nm 561 nm 589 nm 633 nm 640 nm

3 models · 1 series

491 NM Blue Laser.

3 models

Model	Wavelength	Output / average power	Transverse mode	M2	Polarization ratio	Cooled method	Warm-up time (minutes)	Power supply (100-240VAC)	Expected lifetime (hours)
MBL-U-491-SF	491 nm	1~400 mW	TEM00	~3.0	>100:1	Air Cooled/ Water Cooled	<10	PSU-SF	>10000	Datasheet
FC-491	491 nm	1~360 mW	–	–	–	–	–	–	–
MBL-491(FC)	491 nm	1~360 mW	–	–	–	–	–	–	–

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