50:50 488nm 2x2 Polarization-Maintaining Fiber Coupler

IThe RGB-PMFBC-W0488 RGB series polarization-maintaining fiber coupler is a high-performance coupler designed for visible light wavelength splitting, manufactured using our IPCS-5000-P polarization-maintaining fiber fusion tapering machine. It offers excellent performance and can cover the entire wavelength range (460-2200nm). The polarization-maintaining coupler is made with panda-type Fujikura polarization-maintaining fiber, enabling it to maintain a high polarization extinction ratio (PER) when light is emitted along the slow axis of the fiber. Xiaoxiao Photonics' optical polarization-maintaining components are aligned to the slow axis by default, and our polarization-maintaining couplers feature a high extinction ratio and can operate over a wide temperature range from -40°C to 85°C.

Product features：Fused fiber coupler for 460-2200nm、 Coupling ratios of 50:50, 75:25, 90:10, or 99:1、 Bidirectional coupling (any end can be used as input)、 2.0 mm narrow key FC/PC or FC/APC connectors、 Each broadband coupler comes with its own test report

Application area：Polarization-maintaining fiber amplifiers、 Fiber optic gyroscopes、 Optical sensors

Unit Price

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Part Number

RGB-PMFBC-W0488-S2-CR5050-1-9-PA-35T

Lead Time

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Stock

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General Parameters

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Dimensional Drawing

Parameters

Structure		Unit	1×2/2×2
Type			Polarization-Maintaining Fiber optic
			Coupler(PMFBC)
Operating Wavelength		nm	488 /632/633
Operating Bandwidth		nm	±15
50/50		%	4 .0 /4 .0
30/70		%	5 .75/2 . 10
10/90		%	1 1 .60/1 .00
Maximum Insertion Loss	5 /95	%	14 .80/0 .80
	2 /98	%	18 .50/0 .45
	1 /99	%	22 .00/0 .40
Extinction Ratio		dB	CR>5% 5 % ≥CR>1%		≥18 .00 ≥15 .00
Return Loss		dB	≥50 .00
Directivity		dB	≥55 .00
Operating Temperature		Deg .	-5-75
Storage Temperature		Deg .	-40-85
Fiber Length		m	1 .00 ±0 . 10
Fiber Type			Panda PM Fiber
Fiber Diameter		um	250	900		900/2000/3000
Package Dimensions		mm	3×54	3×70		90×16×10

Notes:

All test results exclude connectors; adding connectors increases insertion loss by 0.3 dB.

Better parameters or other requirements can be customized.

Single-Point Data Test: 1x2, 50:50, 488nm Polarization-Maintaining Fiber Coupler
(Tested with an FP laser, center wavelength 488nm, spectral width: 30nm, 2.5 mW polarization-maintaining laser as an example)

488nm PM FP Laser diode

Slow Axis Alignment

RGB-PMFBC-W0488-S1-CR5050-1-9-PA-35T Black port @0488nm

RGB-PMFBC-W0488-S1-CR5050-1-9-PA-35T White port @0488nm

Ordering info

RGB-PMFBC-W□□□□-S○-CR▽-☆-△-XX-□□
W□□□□: Wavelength
0488: 0488nm
1392: 1392nm
1512: 1512nm
1532: 1532nm

1550: 1550nm
1650: 1650nm
1742: 1742nm

S○: Port Structure
12: 1x2
22: 2x2

CR▽:
0199: 1:99
1090: 10:90
2575: 25:75
5050: 50:50

☆: Pigtail Length
05: 0.5m
1: 1m
10: 10m

△: Loose Tube
B: Bare Fiber
9: 900µm Loose Tube
20: 2mm Loose Tube
30: 2mm Loose Tube

XX: Fiber and Connector Type
PA = PM Fiber + FC/APC
PP = PM Fiber + FC/PC

□□: Package
35T: Tube 3×35
70T: Tube 3×70
M: Module 90×16×10

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