Collimating & Refocusing Objectives for mid Infra-Red Fiber Cables

Main features:

Compatible with SMA- or FC-terminated fiber cables
Pupil diameter 15mm or 5 mm
Thread build-in in your optical system
Non-Magnetic Aluminium Housing
Refocusing or Collimating design
M24 thread adaptors to SM1, RMS and S-Mount are available on request

Description

MID-IR Focusing and Collimating Objectives are designed to use with Infra-Red fiber optic cables and bundles.
The housing of the lens easily connects to fiber optic cables either with FC/PC or with SMA connectors and enables Z-axis alignment.

Thread adaptors are suitable to mount lens objectives to Thorlabs optical components with SM1, RMS and S-Mount.

Mid-IR Lenses are available with anti-reflection (AR) coating for two spectral ranges:

3-5µm – for chalcogenide fiber cables
8-12μm – for silver halide fiber cables

Specs

Table of Refocusing Objectives

Code	FORO-L-3/5-F10	FORO-L-8/12-F10	FORO-S-3/5-F5	FORO-S-8/12-F5
ZnSe Lens	Double-convex Ø 15	Double-convex Ø15	Plano-convex Ø 5	Plano-convex Ø 5
AR Spectral Range	3-5µm	8-12µm	3-5µm	8-12µm
Lens Focal Distance	10 mm	10 mm	5 mm	5 mm
Numerical Aperture	0,35	0,35	0,25	0,25
Outer Diameter	25 mm	25 mm	12 mm	12 mm
Connecting Thread	M24x1	M24x1	no	no
Length (approx.)	37 mm	37 mm	23 mm	23 mm
Alignment Options	Z-axis positioning	Z-axis positioning	Z-axis positioning	Z-axis positioning
SMA Adapter	YES	YES	YES	YES
FC/PC Adapter	On Request	On Request	On Request	On Request
Housing	Aluminium Black anodizing	Aluminium Black anodizing	Aluminium Magenta anodizing	Aluminium Magenta anodizing

Table of Collimating Objectives

Code	FOCO-L-3/5-F20	FOCO-L-8/12-F20	FOCO-S-3/5-F5	FOCO-S-8/12-F5
ZnSe Lens	Plano-convex Ø 15	Plano-convex Ø15	Plano-convex Ø 5	Plano-convex Ø 5
AR Spectral Range	3-5µm	8-12µm	3-5µm	8-12µm
Lens Focal Distance	20 mm	20 mm	5 mm	5 mm
Numerical Aperture	0,35	0,35	0,4	0,4
Outer Diameter	25 mm	25 mm	14 mm	14 mm
Connecting Thread	M24x1	M24x1	no	no
Length (approx.)	37 mm	37 mm	23 mm	23 mm
Alignment Options	Z-axis positioning	Z-axis positioning	Z-axis positioning	Z-axis positioning
SMA Adapter	YES	YES	YES	YES
FC/PC Adapter	On Request	On Request	On Request	On Request
Housing	Aluminium Black anodizing	Aluminium Black anodizing	Aluminium Magenta anodizing	Aluminium Magenta anodizing

Downloads

art photonics - FOCO - FORO - Manual

art photonics - Collimating Objectives - Datasheet

art photonics - Refocusing Objectives - Datasheet

Graphs

Transmission Spectra

MID-IR Refocusing Objectives (FORO)

Collimating Objectives for Mid IR-Fiber Cables (FOCO)

Applications

Focusing the beam out of the fiber or, used in reverse, into the fiber
Collimating the beam out of the fiber or, used in reverse, focusing of collimated beam into the fiber
Fiber end/bundle imaging to the detector

Using a lens to collect the radiation into the optical fiber

The area S is limited by the numerical aperture of the optical fiber. The fiber "sees" the radiation exiting from each point within the area S.

The radiation reaching the fiber end is proportional to the angle d1/L, where d1 is the fiber diameter, L is the distance between S and fiber end.

To increase the radiation collected into the fiber, it is necessary to put a lens between S and fiber end, then the signal is proportional to d2/L, where d2 is the lens diameter (d2 > > d1).

Focus distance F and the lens diameter d2 should agree with the numerical aperture of the fiber.

Inquiry

Do you have any questions about this or any other product? Send us an inquiry, and our personnel will answer your question as soon as possible.

Collimating & Refocusing Objectives for mid Infra-Red Fiber Cables

Description

Specs

Downloads

Graphs

Applications

Inquiry

Related products

Related products

Vacuum Fiber Optic Feedthrough

Fiber Couplers for LN Cooled MCT Detector

Chalcogenide Mid-IR-Fiber Cables

Polycrystalline Mid-IR Fiber Cables