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1650nm Dual Stage 3 Port Fiber Optic Circulator P Grade SMF 28e Low Insertion Loss High Isolation FC APC Steel Tube
1. Product Overview
This 1650nm dual-stage optical circulator utilizes SMF-28e single-mode fiber and a P-class optics design, featuring low insertion loss, high return loss, high isolation, and low port crosstalk. The product is housed in a compact φ5.5*50mm steel tube and equipped with FC/APC connectors, making it suitable for optical line monitoring, fiber optic sensing, and high-reliability optical systems.
2. Product Features
Parameter
Unit
Specification
Test Data
Operating Wavelength
nm
1650±5
1650±5
Insertion Loss(Port1-Port2) @1650nm,23°C
dB
≤1.0
0.99
Insertion Loss(Port2-Port3) @1650nm,23°C
dB
≤1.0
0.71
Isolation (Port2-Port1) @λop,25±5°C
dB
≥45
57
Isolation(Port3-Port2) @λop,25±5°C
dB
≥45
47
Return Loss (All Ports) @23°C
dB
≥45
54
Directivity(Port1-Port3) @23°C
dB
≥60
64
Power Handling
mW
500
Operating Temperature
℃
0 ~ +70
Storage Temperature
℃
-40 ~ +85
Package Dimension
mm
(ɸ)5.5±0.1 x (L)50±1
Fiber Color
-
Port1:Red,Port2:Blue,Port3:White
Fiber Type
-
SMF-28e
Fiber Jacket
-
900um loose tube
Fiber Length
m
Port1&Port3:≥0.5；Port2:≥0.25
Connectors
-
Port1&Port3:FC/APC；Port2:FC/PC
Dual-stage optical circulator structure for improved reverse optical isolation performance
Center operating wavelength 1650nm
P-class performance configuration, suitable for high-reliability optical paths
Insertion loss IL≤1.5dB
Return loss RL≥50dB
Isolation ISO≥33dB
Port crosstalk≥50dB
Uses SMF-28e single-mode fiber
Equipped with 900μm loose tube protection
P1 red, P2 blue, P3 white for easy port identification
Length of each end including connector 100±5cm
All ports are equipped with FC/APC connectors
φ5.5*L50mm steel tube packaging, compact structure, good mechanical stability
Neutral English test report including PMD test items
Blister box packaging, suitable for transportation and bulk delivery
Customization of fiber length, connector and tube colors is supported
3. Applications:
1650nm optical line online monitoring
OTDR testing and fault location system
Fiber optic sensing and precision measurement
Optical network protection and status monitoring
Fiber laser and amplifier systems
Bidirectional optical signal isolation and routing
Optical passive device testing platform
Integration of communication equipment and optical instruments
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2014
Employee Number:
150~200
Ecer Certification：
Verified Supplier
About Gracyfiber
Gracyfiber was founded in 2014 by a technical team with over 25 years of experience in passive optical components. With an integrated manufacturing facility of over 2,000 m² and a skilled engineering team, we deliver stable, high-reliability products for demanding applications.
W...
About Gracyfiber
Gracyfiber was founded in 2014 by a technical team with over 25 years of experience in passive optical components. With an integrated manufacturing facility of over 2,000 m² and a skilled engineering team, we deliver stable, high-reliability products for demanding applications.
W...
