Power stability, linewidth, beam quality

MDL-III-1270-SM1270 nm infrared CW laser

1270 nm

The MDL-III-1270-SM is a 1270 nm continuous-wave direct diode laser. Electrical current creates optical gain in a semiconductor junction, and the diode generates the laser light directly. Optical feedback selects the oscillating modes, while drive current and junction temperature affect output power and wavelength. The TTL and analog modulation options control different things: TTL gates the beam on and off, while analog control varies its intensity. Modulation bandwidth sets how quickly the source can follow a changing command. The specified fiber connection delivers the generated light to the experiment; its core size, numerical aperture and connector need to match the receiving optics.

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Specifications

MDL-III-1270-SM

21 specification rows

Output / average power	1~10 mW
Beam / notes	SM Fiber output laser
Operating mode	CW
Power stability (rms, 4 hours ± 3°C)	<2%, <1%, <0.5%
Transverse mode	Multimode
Beam divergence, full angle (mrad)	<3.0
Warm-up time (minutes)	<5
Cooled method	Air cooled
Operating temperature (°C)	10-35
Power supply (100-240VAC)	PSU-H-FDA/PSU-H-LED
Expected lifetime (hours)	>10000
Central wavelength (nm)	1270±3
Output power after fiber (mW)	1-10
Fiber type	SM fiber, PM fiber optional
Fiber Core diameter	4-9μm, 0.12NA
Fiber connector	FC/PC, FC/APC optional
Fiber length	1m
Fiber jacket	Metal, PVC optional
Ellipticity	>0.95
M2 after fiber	~1.1
Modulation option	DC-1kHz, 1kHz-10kHz, 10kHz-30kHz, 30kHz-100kHz optional; TTL and Analog optional