Abstract
A novel diffractive-pumping scheme is proposed to improve the evanescent amplification using blazed fiber grating for the first time. We also investigate the cw-pumped evanescent amplification at 1.55 μm wavelength with the relative optical gain pumped at 1480 nm of around 2 dB based on side-polished fiber with the effective interaction length as long as 16 mm and with a heavily Er3+-doped (NEr3+ > 1.19 × 10 21 ions/cm3), low refractive index (n1550 < 1.47) glass overlay, which has no concentration quenching (τf = 9.0 ms).
| Original language | English |
|---|---|
| Pages (from-to) | 6328-6330 |
| Number of pages | 3 |
| Journal | Japanese Journal of Applied Physics |
| Volume | 45 |
| Issue number | 8 A |
| DOIs | |
| State | Published - 04 08 2006 |
| Externally published | Yes |
Keywords
- Erbium-doped glass
- Evanescent amplification
- Evanescent tunneling
- Side-polished fiber