SELFOC® Laser Diode Collimating Lenses - Technical Charts

Specifications


Part #		SPL AG3645-2	SLW 300-S11-078-S20	SLW 400-S11-078-S20	ZGI-CL 120-140-450
Features/ Remarks		Mounted on aluminum holder	AR coating optional	Large diameter	Long focal length, large diameter
Lens Type		Radial Gradient Plano-Convex	Radial Gradient Plano-Plano	Radial Gradient Plano-Plano	Axial Gradient Plano-Convex
Wavelength*		780 nm	780 nm	780 nm	633 nm
AR Coating		C2 Coating	S2 Coating	S2 Coating	C2 Coating
Lens Diameter		4.0 +0/-0.02 mm	3.0 +0/-0.02 mm	4.0 +0/-0.02 mm	4.5 mm +0/-0.1 mm
Effective Dia. (Deff)		3.3 mm	1.8 mm	2.5 mm	3.4 mm
Lens Length		Holder length 3.35 mm	3.35 +/- 0.2 mm	4.2 +/- 0.2 mm	1.3 +/- 0.1 mm @center
Working Distance		2.7 mm from holder end	3.7 mm	5.4 mm	11.2 mm
Effective Focal Length		3.6 mm	5.0 mm	7.1 mm	12.0 mm
N.A.	on axis	---	0.46	0.46	---
	at Deff	0.45	0.18	0.18	0.14
Wavefront Aberr.**		l/4 typical at Deff	l/4 max. at Deff	l/4 max. at Deff	l/4 max. at Deff

* Lenses designed for 780 nm are suitable for 670 nm applications as well.
** Wavefront aberration is measured at 633 nm.
Note: Consult NSG America for details on surface quality.