Core Crosstalk Pain Points in Multi‑Band Laser Systems (H2)

• Reduced SNR and distorted output waveforms
• Interference to upstream lasers and amplifier modules
• Cross-channel interference in wavelength-division multiplexing
• Performance drift under high power, lowering stability
  
  
  These issues directly impact equipment lifetime and production consistency in industrial laser, optical transmission, and test & measurement scenarios.

Crosstalk Suppression Performance of TGG‑Based PM Circulator (H2)

Key Specification Support (H3)

• Crosstalk: ≥45 dB, strongly suppresses inter-channel interference
• Return Loss: ≥45 dB, blocks backward reflected light
• Min. Isolation: ≥20–22 dB; Peak Isolation ≥25–26 dB
• Extinction Ratio: ≥18 dB (Type B) / ≥20 dB (Type F)
• Operating Wavelength: 532/635/680/780/808/850/930/980/1030/1053/1064/1150 nm
• Bandwidth: ±5 nm or ±10 nm (wavelength dependent)
• Operating Temperature: 0~+60 ℃
• Max CW Power: up to 20 W

Value for Multi‑Band Industrial Applications (H2)

1. Strong crosstalk suppression for pure multi-band signals
2. Stable polarization to avoid distortion from polarization coupling
3. High isolation to protect lasers and sensitive optical modules
4. Full 532–1150nm coverage to reduce part numbers
5. Standard 70×28×26 mm package for easy equipment integration
   
   
   Supports CW and pulse laser operation for industrial production and scientific platforms.

Selection Guidelines for Multi‑Band Laser Systems (H2)

• Prioritize versions with Crosstalk ≥45 dB and Return Loss ≥45 dB
• Confirm bandwidth (±5 nm or ±10 nm) for your target wavelength
• Match PM fiber type: PM460/PM630/PM780/PM980/PM1060
• Connectorized versions add 0.3 dB IL, reduce RL by 5 dB, reduce ER by 2 dB
• For pulse use, specify peak power and pulse energy