NEL激光器是基于半導體的DFB激光器，共有NLK和KELD兩個系列。NLK系列的波長范圍從O-band至UL+-band，1260~1705nm，功率有10mW和20mW兩種可選；KELD系列為長波長激光器，波長范圍為1735~2400nm，功率有2mW、5mW和10mW可選。該類型激光器非常適合氣體探測、光通訊等應用。
Telecom-band 通訊波段
| Wanelength Band |
Wavelength | Package | ||||
|---|---|---|---|---|---|---|
| TO-CAN | TO5 with TEC * |
14-pin Butterfly | ||||
| 10 mW | 20 mW | 10 mW | 10 mW | 20 mW | ||
| O-band | 1260-1360 nm | NLK1B5C1TA | NLK1B5D1TA | NLK1B5EAYF | NLK1B5EAAA | NLK1B5GAAA |
| E-band | 1360-1460 nm | NLK1E5C1TA | NLK1E5D1TA | NLK1E5EAYF | NLK1E5EAAA | NLK1E5GAAA |
| S-band | 1460-1530 nm | NLK1S5C1TA | NLK1S5D1TA | NLK1S5EAYF | NLK1S5EAAA | NLK1S5GAAA |
| C-band | 1530-1565 nm | NLK1C5C1TA | NLK1C5D1TA | NLK1C5EAYF | NLK1C5EAAA | NLK1C5GAAA |
| L-band | 1565-1625 nm | NLK1L5C1TA | NLK1L5D1TA | NLK1L5EAYF | NLK1L5EAAA | NLK1L5GAAA |
| UL-band | 1625-1670 nm | NLK1U5C1TA | NLK1U5D1TA | NLK1U5EAYF | NLK1U5EAAA | (NLK1U5FAAA) (15mW) |
| UL(+)-band | 1670-1690 nm | NLK1U5C1TA (1670-1690) |
- | - | NLK1U5EAAA (1670-1690) |
- |
| 1690-1705 nm | NLK1U5C1TA (1690-1705) |
- | - | NLK1U5EAAA (1690-1705) |
- | |
Longer wavelength 長波波段
| Wavelength | Package | ||
|---|---|---|---|
| TO-CAN | TO5 with TEC * | 14-pin Butterfly | |
| 1735-1805 nm | KELD1F5C2TA (10 mW) | KELD1F5EAYF (10 mW) | KELD1F5DAAA (5 mW) |
| 1865-1890 nm 1995-2015 nm |
KELD1G5B2TA (5 mW) | KELD1G5DAYF (5 mW) | KELD1G5BAAA (2 mW) |
| near 2050 nm | KELD1G5A4TA-2050 (5 mW) | - | KELD1G5BAAA (2050) (2 mW) |
| near 2100 nm | KELD1G5A4TA-2100 (5 mW) | - | KELD1G5BAAA (2100) (2 mW) |
| near 2330 nm | KELD1G5B2TA (2330) (2 mW) * | KELD1G5BAYF (2330) (2 mW) | KELD1G5BAAH (2330) (2 mW) |
