FUSED PM AXIS MATCHED LOW RATIO TAP
Fused Fiber Coupler
PRELIMINARY
The Gooch & Housego fused PM axis-matched LRT enables low power monitoring of a PM signal path.
G&H proprietary PM manufacturing technology provides tap ratios as low as 0.01% with low loss and high signal path polarization extinction ratio.
Fused PM Axis-Matched LRT’s exhibit outstanding tap ratio stability even when system polarization extinction ratio levels are low or fluctuating.
The all fiber construction and excellent loss characteristics provide exceptional reliability at high powers.
Wide temperature range operation with TDL typically <0.002 dB/°C for the tap path.
These high performance parts are available at a range of wavelengths with different fiber options.
Fused PM LRTs can therefore be readily specified in a wide variety of applications, enabling rapid design cycles and new project builds.
Standard parts are available at wavelengths from 900 – 1600 nm. For other wavelengths or coupling ratios please contact the G&H sales office.
Key Features
• Low loss
• High signal path PER
• Ultra-low PADL
• Fast/slow operation
• Low TDL
• SM fiber tap path
• High power handling
Applications
• High power fiber lasers
• Fiber amplifiers
• Instrumentation
• Coherent communications
• Fiber gyroscopes
• Power monitoring of PM sources
Target Optical Specifications
Parameter
Specification1,2,7
Coupling ratio
0.01%
0.1%
1%
5%
10%
Tap insertion loss
36 – 44 dB
27 – 33 dB
18.2 – 23 dB
11.9 – 14.9 dB
8.86 – 11.85 dB
Signal insertion loss
0.5 dB (Typ
<0.3 dB)
0.5 dB (Typ
<0.3 dB)
0.5 dB (Typ
<0.3 dB)
0.7 dB (Typ
<0.5 dB)
1.0 dB (Typ
<0.7 dB)
Polarization axis
dependent loss (PADL)
≤0.10 dB
Thermal stability
≤0.25 dB
Signal PER
>20 dB
Return loss
>50 dB
Available wavelength range 3
900 – 1600 nm
Operating bandwidth
Center wavelength ±10 nm
Operating temperature 6
–5 – +75°C
Storage temperature
–40 – +85°C
Optical power handling4,5
4 W (standard package without heat-sinking)
Fiber type8 Signal
Tap
PM and PLMA PANDA Fiber
Non PM Fiber
1 Devices characterized for slow-axis as standard.
2 All specifications are for operation at room temperature.
3 Center wavelength may be selected from within the available wavelength range supplied. For wavelengths outside this range contact G&H sales.
4 For operation at powers greater than 4 W the component housing and fiber must be adequately heat-sunk (for additional information contact G&H sales). Components intended for high power operation are only available in the 2x2 configuration. Component performance and reliability under high power must be determined within the customer system.
5 The performance and reliability of optical connectors is not guaranteed for optical powers of greater than 1 W.
6 For operation outside this temperature range contact G&H sales.
7 Values in specification table do not include connector performance.
8 For other fiber types contact G&H sales.
Configuration
Housing Options
Housing Code
Description
Dimensions (mm)
Pigtail
3
Regular
3.0
(∅) x
60 (L max)
Primary-coated fiber
5
Semi-ruggedized slim
3.0
(∅) x
75 (L max)
∅0.9 mm loose-tube
7
High power
5 (W) x 5
(H) x 85 (L max)
Primary-coated fiber
C
Regular high power
3.0
(∅) x
60 (L max)
Primary-coated fiber
Order code
Order codes are comprised of a standard device prefix (e.g. FPM) followed by code letters or numbers which correspond to available options.
Sample: FPM-060N31A10 (Fused fiber LRT, 1060 nm, 0.01% tap, regular housing, 1x2, PM980+SMF980 fiber, 1 m pigtail lengths, no connectors).
1 Minimum pigtail length. Further pigtail lengths available on request. Where connectorized, pigtail length is to connector end face.
2 Connectors may be fitted to housing type 5. For connectorization of other housing types please contact the sales office.
3 7 & C not available as 1x2 port configuration.
4 9, 0, 1 and 2 available with fiber code A and B. 3, S, C and L available with fiber code C.
5 For wavelengths outside this range contact G&H sales.
商品属性 [波长] 900-1600nm