Isolating Wavelength Division Multiplexer CP-IWDM
CP-IWDMsare hybrid products combining an integrated isolator and 980nm/1550nmWavelength Division Multiplexer (WDM). They are designed to combine high powerMulti-Mode (MM) pump light and Single-Mode (SM) signal light intoSMM900(105/125) dual-clad pump-signal fiber. The signal is carried in thesingle-mode core while pump energy is confined within the large area 105μmmulti-mode guide for delivery to dual-cladding doped fibers.
The CP-IWDM is designed specifically as a partner for the cladding pumpamplifier fiber CP1500Y. It is ideally suited to systems incorporatingFibercore’s other cladding pump component fibers: Multi-Mode Pump Fiber(MM105), a large core pump guide fiber, and Passive Dual-Clad Fiber (SMM900), adual-clad fiber with single-mode core for signal propagation and multi-modepump guide for high power pump light delivery.
Two variants of the CP-IWDM are available, a co-pump CP-IWDM and counter-pumpCP-IWDM/001 to offer customers flexibility in their amplifier or laser design.
Advantages:
• Single component for WDM and isolating function
• Small package size
• Compatible with CP1500Y
• Epoxy free optical path
• High stability and reliability
• Ultra low Polarization Dependant Loss (PDL) & Polarization ModeDispersion (PMD)
RelatedProducts:
• Dual-Clad Erbium/Ytterbium Doped Fiber (CP1500Y)
• Multi-Mode Pump Fiber (MM105)
• Passive Dual-Clad Fiber (SMM900)
Typicalapplications:
• High Power Erbium Doped Fiber Amplifiers (EDFAs)
• Fiber Lasers
• WDM systems
• Cable Television (CATV)
ProductVariants:
• CP-IWDM Co-pumping isolating wavelength division multiplexer
• CP-IWDM/001 Counter-pumping isolating wavelength division multiplexer
Specifications
General Mechanical | Package Diameter (mm) | 5.5 |
| Package Length (mm) | 54 |
| Fiber Length (m) | 1 |
| Operating Temperature (ºC) | 0 to +70 |
| Storage Temperature (ºC) | -40 to +85 |
General Optical | Signal Wavelength Range (nm) | 1528 - 1564 |
| Pump Wavelength Range (nm) | 965 - 1000 |
| Directivity (dB) | ≥40 |
| Return Loss (dB) | ≥50 |
| Polarization Mode Dispersion (ps) | ≤0.25 |
| Polarization Dependent Loss (dB) | ≤0.1 |
| Isolation @ 23ºC (dB) | ≥31 |
| Signal Wavelength Isolation (dB) (1 to 3) | ≥12 |
| Pump Wavelength Isolation (dB) (1 to 2 or 2 to 1) | ≥30 |
| Pump Channel Insertion Loss (dB) | ≤0.6 |
| Signal Channel Insertion Loss (dB) | ≤1.1 |
S Single-Mode Fiber | Cladding Diameter (μm) | 125 |
| Operating Wavelength (nm) | 1550 |
| Numerical Aperture nominal | 0.12 |
| Max Input @ 1550nm (mW) | 300 |
P Multi-mode Fiber | Cladding Diameter (μm) | 125 |
| Pump Guide Diameter (μm) nominal | 105 |
| Numerical Aperture nominal | 0.22 |
| Max Input @ 970nm (mW) | 5000 |
C Dual-Clad Fiber | Cladding Diameter (μm) | 125 |
| Single-Mode Cut-Off Wavelength (nm) | 870 - 970 |
| Single-Mode NA | 0.18 - 0.20 |
| Pump Guide Diameter (μm) nominal | 105 |
| Pump Guide NA nominal | 0.22 |
