Attenuating Mono Fiber-optic Patch Cords

Name: Attenuating Mono Fiber-optic Patch Cords
Brand: Doric Lenses Inc.
Availability: InStock

Fiber-optic patch cords with an integrated attenuating filter are ideal for applications where optical power coupled into a fiber is too high, i.e. fiber photometry excitation. Addition of attenuating filter does not affect light distribution inside the optical fiber, only transmission is reduced. Different optical fibers or attenuating factors are possible.

More information

Ordering Code =


    …generating

Notes:

For attenuating patch cords, optical transmission is specified for visible light, and measured at a 465 nm wavelength. Please note that for a 405 nm wavelength (UV), the transmission value is about half of the specification for visible light.
Other fiber-optic lengths and jackets are available on custom request.
An attenuating filter can also be integrated to Branching Fiber-optic Patch cords on custom request.

Comparison Table : Patch cord Optical Fiber Type
Fiber-optic Material	Borosilicate	Silica/Silica	Silica/Polymer	Plastic
Core	Glass	Glass	Glass	Plastic
Cladding	Glass	Glass	Polymer	Polymer
Numerical Aperture	0.66	0.22 - 0.37	0.48 - 0.57	0.50 - 0.63
Flexibility	Poor	Good	Good	Excellent
Auto-Fluorescence	Good	Excellent	Good	Poor
RECOMMENDED USE :
Fiber Photometry	N/A (too fragile)	Good*	Good*	Not recommended (high AF)
Optogenetics LED Source	N/A (too fragile)	Not recommended (low NA)	Good	BEST
Optogenetics Laser Source	N/A (too fragile)	BEST	Good	Good

Optical Transmission

1 %, 2 %, 5 %, 10 % @ 465 nm

Drawing
Attenuating Patch Cord

Core (μm)	Cladding (μm)	Buffer	NA	Fiber-optic Code*
200	220	240	0.22	200/220/XXX-0.22
200	220	245	0.37	200/220/XXX-0.37
200	230	500	0.48	200/230/XXX-0.48
400	430	730	0.48	400/430/XXX-0.48
400	440	470	0.37	400/440/XXX-0.37
400	440	480	0.22	400/440/XXX-0.22

*XXX is representative of the jacket code, see the JACKETS CODE tab to choose the best one for your needs

Comparison Table : Protective Jacket
Composition	Code	Description	Color	OD (mm)	Linear mass (g/m)	Flexibility	Fiber break protection	Fiber pull protection	Proposed usage
	LWMJ	Stainless monocoil with PVC 2.4 mm	Black	2.4	7.5	Good	Good	Good	Freely-moving animal light delivery with large mice or rat
	PKMJ	Stainless monocoil with kevlar and PUR 3.0 mm	Black	3.0	11	Good	Excellent	Excellent	Best compromise between flexibility and robustness
	ARBK	Stainless armor with PVC 3 mm	Black	3.0	15	Low	Excellent	Excellent	Preferred for maximum robustness