1550nm SM Isolator & Band Pass Filter Hybrid Combination

The 1550nm SM Isolator & Band Pass Filter Hybrid Combination is a combination of a BPF and a low power isolator in a single compact package. All input and output fibers are polarization independent. It guides optical light in one direction and block out unwanted noise signals, eliminates back reflection and back scattering in the reverse direction. This product offers integrated solution to fiber laser and fiber amplifier application by combining more functions into a very compact package.

If you do not see a standard BPF & isolator that meet your needs, we welcome the opportunity to review your desired specification and quote a custom isolator. Requests for custom fiber pigtails, different wavelengths and handling power of operation or other specific needs will be readily addressed. DK Photonics can respond to custom requirements with short lead times.

Performance Specifications

Parameter	Unit	Specification
Stage		Single Stage			Dual Stage
Operating wavelength	nm	1550
Min. Pass bandwidth@0.5dB	nm	2	5	10	2	5	10
Min. Stop bandwidth@25dB down	nm	6	12	20	6	12	20
Typ. Insertion Loss at 23℃	dB	0.6			0.7
Max. Insertion loss at 23℃	dB	0.8			0.9
Typ. Peak Isolation at 23℃	dB	42			52
Min. Isolation at 23℃	dB	32			46
Max. PDL	dB	0.1
Return loss (input/output)	dB	≥60/55
Fiber Type	–	SMF-28e or other
Max. Power Handling (CW)	W	0.3, 1, 3, 5, 10
Max. Peak Power for Pulse	kW	1, 5,10
Max. Tensile Load	N	5
Operating temperature	℃	-5℃ ~ + 70℃
Storage temperature	℃	-40℃ ~ + 85 ℃
Dimensions	mm	Ф5.5× L35

Above specifications are for device without connector.
For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower.Power transmitsthrough the connector less than 2W.
3. If there is pulse application, please be sure to inform us of pulse energy and peak power.

Package Dimension

The default is without a reflective port.If the power to be blocked is relatively high, it is recommended to have a reflective port to guide the energy out of the shell.
Due to ongoing design improvements, the package size is subject to change.
For high power applications, we will use heat sink package, contact DK Photonics for details. Please contact DK Photonics for confirmation.

Order information

P/N: ISO&BPF-①-②-③-④-⑤-⑥-⑦

When you inquire, please provide the correct P/N number according to our ordering information and attach the appropriate description would be better. If need any connector, we do not recommend choosing a 250μm bare fiber pigtail.

①

②

③

④

⑤

⑥

⑦

Type

wavelength

Pass bandwidth

Power Handling

Pigtail Diameter

Fiber Length

Connector

S: Single stage

D: Dual stage

15:1550nm

XX: Others

2:2nm

5:5nm

10:10nm

L: Refer to the above table

25:250μm bare fiber

90:900μm Loose Fiber

XX: Others

08:0.8m

10:1.0m

XX: Others

00: None

FP: FC/PC

FA: FC/APC

SP: SC/PC

SA: SC/APC

XX: Others

Part Number Example: ISO&BPF-S-15-2-L-25-10-00

Description: 1550nm SM single stage Isolator & BPF Hybrid Combination- 300mW, 2nm pass bandwidth, 1.0m fiber length with bare fiber and no connector at all ports.

Ordering Information for Custom Parts

If you need to customize other specifications, please provide detailed description for your requirement.

Product

Isolator & BPF Hybrid

Products