JDS Uniphase TB9 JDSU TB9226+1SU1 Tunable Grating Filter 1460-1575nm

The JDSU TB9226+1SU1 is a tunable grating filter engineered for precision wavelength selection across the 1460–1575 nm band. It delivers optical filtering for laboratory and production testing of single-mode fiber components and subsystems in optical communication systems. The device leverages diffraction grating technology to achieve steep wavelength isolation roll-off, outperforming traditional Fabry-Perot and interference filter architectures.

Primary applications include suppression of amplified spontaneous emission (ASE) in Erbium-Doped Fiber Amplifiers (EDFAs), removal of spontaneous emission from distributed feedback and tunable lasers, and characterization of wavelength-selective components.

Technical Specifications

• Wavelength Range: 1460–1575 nm


• Resolution: 0.01 nm


• FWHM (-3 dB bandwidth): As low as 0.22 nm; models available from 0.22–1.4 nm


• Insertion Loss: <6.0 dB


• Polarization Dependent Loss (PDL): 45 dB


• Tuning Repeatability: 0.05 nm


• Single-mode fiber input/output


• Operating Temperature: 10–40 °C


• Storage Temperature: 0–50 °C


• Power Supply: 100–240 VAC, 50–60 Hz


• Power Consumption: 80 VA maximum


• Warm-up Time: 1 hour to specification; 2 hours recommended before operation

Key Features

• Dual configuration options: single-pass and double-pass grating designs for optimal rejection and narrow bandwidth


• High rejection capability across the C and L telecommunications bands


• Six standard models with bandwidth and performance variations for application-specific deployment


• Front-panel keypad control with GPIB, RS-232, IEEE 488, and parallel/serial remote interfaces

Typical Applications

• ASE filtering in EDFA systems


• Spontaneous emission suppression from DFB and tunable laser sources


• Tunable laser-based component testing


• WDM and DWDM subsystem characterization

Compatibility & Integration The TB9226+1SU1 interfaces via front-panel keypad, GPIB, RS-232, and IEEE 488 protocols, enabling integration into automated test environments and manual laboratory setups.