The excellent mode quality and easy coupling make the aeroGAIN-ROD module an ideal gain medium for high-power amplifiers. The rugged aluminum body makes the module easy to handle and mount for both OEM integration and scientific laboratory setups. Integrated water cooling with quick coupling ensures efficient thermal management and a long maintenance-free lifetime of thousands of hours. The pump light is guided by our proven air clad technology, with high reliability, high damage threshold, and large NA. The modules come standard with high-power AR-coated end-caps.
Features
- Diffraction limited beam quality
- High peak power damage threshold
- Compact format
- High NA pump cladding
- AR coated end-caps
- Optimized for 1030-1040nm range
- Supports PM and non-PM amplification
The aeroGAIN-ROD modules are available in two configurations.
| Model | Signal core diameter | Mode field diameter (1/e2 @ 25%0 nm) | Pump cladding diameter |
| 1.1 | ~55 µm | 45 µm ± 4 µm | 200 µm ± 10 µm |
| 2.1 | ~85 µm | 65 µm ± 5 µm | 260 µm ± 15 µm |
| Signal wavelength | 1030-1040 nm |
| Pump cladding NA (FWHM@950 nm) | ≥ 0.50 |
| Gain fiber length | 804 mm ± 3 mm |
| Cladding absorption@915 nm | 5 dB ± 0.5 dB |
| Cladding absorption@976 nm | ~15 dB (nominal) |
| Typical PER* | ≥15 dB |
| Typical optical efficiency* | ≥60% |
| Typical M2 | ≤ 1.3 |
| End-cap dimensions (DxL) | 6X5 mm |
| End-cap coating R@ 1030 nm | ≤ 0.2% |
| End-cap coating R@ 976 nm | ≤ 0.3 % |
| End-cap angle, input | ≤ 0.5° |
| End-cap angle, output | 2° ± 0.5° |
| Signal average power | ≤ 100 W |
| Dimensions (WxLxH) | 35x817x35.2 mm |
| Weight | 2.5 kg |
| Water cooling connection | 8 mm x 1/4” BSPP |
| Recommended water flow** | >2 L/min |
| Recommended water temperature** | 25°C |
| Operating temperature | 20-30°C (ambient) |
| Storage temperature | -20°C - +60°C |
*Seed level 5 W @ 1030 nm, 80 cm rod length, 976 nm pumping
**We recommend using DI water containing an anticorrosive additive to protect the aluminum cooling circuit. Required
water flow and water temperature depends on the actual optical system parameters
Real single-mode amplification
The aeroGAIN-ROD modules offer true single-mode amplifications at power levels previously reserved for multimode systems. True single-mode amplifications has a range of advantages compared to multimode systems:
- Better output stability
- Excellent beam quality
- No need for tight coiling
