Iris Diaphragms BL

for collimators

Iris Diaphragms can be attached to fiber collimators in order to narrow down the collimated beam.

5BL08-5

Iris diaphragm 25BL1-20

Iris diaphragm 13BL1-13

Iris Diaphragm 13BL0-12

Iris diaphragm 40BL2-42

Products

5BL0.8-5

Iris diaphragm with an variable aperture for fiber collimators series 60FC with an outer diameter Ø 12 mm.

System mount Ø 8 mm
min. aperure Ø 0.8 mm
max. aperture Ø 5 mm

Please note: In case of use with a single mode / PM-fiber, the Gaussian beam from the fiber collimator is truncated by the iris diaphragm or by the pinhole

13BL0-12

Iris diaphragm with an variable aperture for fiber collimators series 60FC-L/T/Q

with an outer diameter Ø 25 mm. Unlike the iris diaphragm type 13BL1-13, this can be closed completely.

System mount Ø 19.5 mm
Can be closed completely
Max. aperture Ø 13 mm

Please note: In case of use with a single-mode / PM-fiber, the Gaussian beam from the fiber collimator is truncated by the iris diaphragm or by the pinhole

25BL1-20

Iris diaphragm with an variable aperture for fiber collimators series 60FC-L/T/Q

with an outer diameter Ø 32 mm.

Thread mount M27x0.5 mm
Min. aperture Ø 1 mm
Max. aperture Ø 20 mm

Please note: In case of use with a single-mode / PM-fiber, the Gaussian beam from the fiber collimator is truncated by the iris diaphragm or by the pinhole

40BL2-42

Iris diaphragm with an variable aperture for fiber collimators series 60FC-L/T/Q

with an outer diameter Ø 55 mm.

System mount Ø 52 mm
Min. aperture Ø 2 mm
Max. aperture Ø 42 mm

Please note: In case of use with a single-mode / PM-fiber, the Gaussian beam from the fiber collimator is truncated by the iris diaphragm or by the pinhole

13BL1-13

Iris diaphragm with an variable aperture for fiber collimators series 60FC-L/T/Q

with an outer diameter Ø 25 mm.

System mount Ø 19.5 mm
Min. aperture Ø 1 mm
Max. aperture Ø 13 mm

Please note: In case of use with a single-mode / PM-fiber, the Gaussian beam from the fiber collimator is truncated by the iris diaphragm or by the pinhole

Order options

Order Code	Series	For Diameter	Ø min. - Ø max.	Mounting
5BL0.8-5	60FC	12 mm	0.8 - 5 mm	System mount Ø 8 mm
13BL0-12	60FC-L/T/Q	25 mm	0 - 12 mm	System mount Ø 13 mm
13BL1-13	60FC-L/T/Q	25 mm	1 - 13 mm	System mount Ø 13 mm
25BL1-20	60FC-L/T/Q	32 mm	1 - 20 mm	M27 x 0.5 mm
40BL2-42	60FC-L/T/Q	55 mm	2 - 42 mm	Ø 52 mm