656.5 nm Red Lasers

Red · CW, Single-Frequency, Pulsed · Datasheets & quote request

656.5 nm Red Lasers

The 656.5 nm emission line operates in the Red region of the optical spectrum. Our portfolio includes configurations across Single-Frequency Lasers, CW Lasers, Pulsed Lasers, supporting CW, Single-Frequency, Pulsed operation. Compare power levels, linewidth, stability, and package dimensions below.

7 models2 seriesquote after qualification

Key applications

Precision interferometry and optical alignment (He-Ne equivalent)
Raman spectroscopy (fluorescence suppression)
Deep-tissue fluorescence imaging (Cy5, Alexa Fluor 647)
Photodynamic therapy (PDT) and biophotonics
Optical tweezers and particle trapping

Other Red lines in catalog (34)

Explore all 400+ wavelengths →

631 nm 633 nm 635 nm 637 nm 638 nm 639 nm 640 nm 642 nm 650 nm 655 nm 656 nm 660 nm 665 nm 666 nm 669 nm 670 nm 671 nm 678 nm 679 nm 680 nm 685 nm 689 nm 690 nm 698 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

7 models · 2 series

Single Longitudinal Mode SLM Laser, Green and Infrared Single Frequency Laser AT 532 NM and 1064 NM.

2 models

Model	Wavelength	Output / average power	Spectral linewidth	Power stability	Optical noise	M²	Transverse mode	Longitudinal mode	Warm-up time (minutes)	Pointing stability over temperature (urad/°C)	Frequency shift (MHz) (over ±2°C and 8hrs) (optional)	Operating temperature (°C)	Power supply (100-240VAC)	Expected lifetime (hours)
656.5	656.5 nm	1~100 mW	<1 MHz	–	<0.5%	<1.2	–	–	–	–	–	–	–	–
MSL-FN-656.5	656.5 nm	1~100 mW	<1 MHz	<3%, <2%, <1%, <0.5%	<0.5%	<1.2	TEM00	Single	<10	<8	<±200	10-35	PSU-H-FDA	>10000	Datasheet

656 NM RED Laser.

5 models

Model	Wavelength	Output / average power	Pulse energy	Power stability (rms, over 4 hours)	Fiber NA	Fiber Connector	Fiber Length (m)	Warm-up time (minutes)	Operating temperature (℃)	Cooling way	Expected lifetime (hours)	Warranty	Transverse mode	Beam diameter at the aperture (mm)	Power supply (100-240VAC)	Pulse duration (ns)	Rep. rate Ext	Power stability (rms, 4 hours , ±3°C)
FC-656.5	656.5 nm	1~360 mW	–	<1%, <2%, <3%, <5%	0.22	SMA905	1 (Other lengths are available on request)	<5	10~35	By air	10000	1 year	–	–	–	–	–	–	Datasheet
MPL-H-656.5	656.5 nm	1~10 mW	2~5 uJ	–	–	–	–	<5	10-35	–	>10000	–	TEM00	~0.8	PSU-H-FDA	–	–	–	Datasheet
MPL-U-656.5	656.5 nm	1~10 mW	1~5 uJ	–	–	–	–	<5	10-35	–	>10000	–	TEM00	~1.0	PSU-H-FDA/PSU-H-LED	~15	1-4kHz	<5%, <3%, <2%	Datasheet
MRL-656.5(FC)	656.5 nm	1~1080 mW	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–
MRL-FN-656.5	656.5 nm	1~1000 mW	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	Datasheet

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