Fixed Ratio Beam Expanders for High Power Lasers
• Designed for high power laser applications: • IBS-coated UV FS thin lenses • High total transmission: >99% • Low GDD: relative pulse broadening <20% • AR-coated for: 1030/1064 nm, 515/532 nm, 343/355 nm … Read more →
Volume discount
- 5–9 units −10%
- 10+ units −15%
Applied in your cart. Quantities of any variant of this product count together.
Listed in
Configure & order — pick a catalog variant or configure your own
| SKU | Expansion · Max Input Beam · DWL · Input Aperture · Output Aperture · Note | |
|---|---|---|
| 161-1.5X-1H | 1.5X·11.0 mm·1030 nm·11.0 mm·22.8 mm·Designed for 515+532 nm, coating R<0.1% @ 500 – 535 nm |
Out of stock
$527
|
| 161-1.5X-2H | 1.5X·11.0 mm·515 nm·11.0 mm·22.8 mm·Designed for 343+355 nm, coating R<0.2% @ 340 – 355 nm |
Out of stock
$527
|
| 161-1.5X-3H | 1.5X·11.0 mm·343 nm·11.0 mm·22.8 mm |
Out of stock
$621
|
| 161-10X-1H | 10X·3.0 mm·1030 nm·8.0 mm·36.0 mm·Designed for 515+532 nm, coating R<0.1% @ 500 – 535 nm |
Out of stock
$784
|
| 161-10X-2H | 10X·3.0 mm·515 nm·8.0 mm·36.0 mm·Designed for 343+355 nm, coating R<0.2% @ 340 – 355 nm |
2 in stock
Ships in: 2–5 calendar days
$784
|
| 161-10X-3H | 10X·3.0 mm·343 nm·8.0 mm·36.0 mm |
1 in stock
Ships in: 2–5 calendar days
$878
|
| 161-2X-1H | 2X·9.0 mm·1030 nm·11.0 mm·22.8 mm·Designed for 515+532 nm, coating R<0.1% @ 500 – 535 nm |
Out of stock
$527
|
| 161-2X-2H | 2X·9.0 mm·515 nm·11.0 mm·22.8 mm·Designed for 343+355 nm, coating R<0.2% @ 340 – 355 nm |
1 in stock
Ships in: 2–5 calendar days
$527
|
| 161-2X-3H | 2X·9.0 mm·343 nm·11.0 mm·22.8 mm |
Out of stock
$621
|
| 161-3X-1H | 3X·9.0 mm·1030 nm·11.0 mm·34.5 mm·Designed for 515+532 nm, coating R<0.1% @ 500 – 535 nm |
Out of stock
$644
|
| 161-3X-2H | 3X·9.0 mm·515 nm·11.0 mm·34.5 mm·Designed for 343+355 nm, coating R<0.2% @ 340 – 355 nm |
1 in stock
Ships in: 2–5 calendar days
$644
|
| 161-3X-3H | 3X·9.0 mm·343 nm·11.0 mm·34.5 mm |
Out of stock
$738
|
| 161-5X-1H | 5X·4.5 mm·1030 nm·10.0 mm·34.5 mm·Designed for 515+532 nm, coating R<0.1% @ 500 – 535 nm |
1 in stock
Ships in: 2–5 calendar days
$644
|
| 161-5X-2H | 5X·4.5 mm·515 nm·10.0 mm·34.5 mm·Designed for 343+355 nm, coating R<0.2% @ 340 – 355 nm |
1 in stock
Ships in: 2–5 calendar days
$644
|
| 161-5X-3H | 5X·4.5 mm·343 nm·10.0 mm·34.5 mm |
1 in stock
Ships in: 2–5 calendar days
$738
|
| 161-7.5X-1H | 7.5X·3.5 mm·1030 nm·8.0 mm·36.0 mm·Designed for 515+532 nm, coating R<0.1% @ 500 – 535 nm |
Out of stock
$784
|
| 161-7.5X-2H | 7.5X·3.5 mm·515 nm·8.0 mm·36.0 mm·Designed for 343+355 nm, coating R<0.2% @ 340 – 355 nm |
1 in stock
Ships in: 2–5 calendar days
$784
|
| 161-7.5X-3H | 7.5X·3.5 mm·343 nm·8.0 mm·36.0 mm |
1 in stock
Ships in: 2–5 calendar days
$878
|
We can make this for you
No catalog variant matches your exact spec. Add it to your cart as a custom item — sales will confirm price and lead time within 1 business day.
Specifications
| Transmitted Wavefront Distortion (TWD) | λ / 6 at 633 nm |
| Focus Range | 1.7 - ∞ |
| Laser Damage Threshold | 1064 nm: >10 J / cm², 10 ns pulse, 10 Hz / 532 nm: >7 J / cm², 10 ns pulse, 10 Hz / 355 nm: >5 J / cm², 10 ns pulse, 10 Hz |
| Input Thread | SM1 external |
| Output Thread | M43×0.5 external |
| Mounting Options | M43×0.5, SM1, M27, M4, 8-32 UNC |
Classification
| Line | femtoline |
| Type | thin |
Description
- Designed for high power laser applications:
- IBS-coated UV FS thin lenses
- High total transmission: >99%
- Low GDD: relative pulse broadening <20%
- AR-coated for: 1030/1064 nm, 515/532 nm, 343/355 nm
- Fixed magnifications from 1.5X to 10X
- Divergence adjustment: non-rotating optics, sliding lens design
Eksma Optics offers Galilean type beam expanders with thin UV FS lenses suitable for femtosecond applications. Fixed Ratio Beam Expanders are designed to increase the diameter of a collimated input high power laser beam to a larger collimated output beam. Fixed Ratio Beam Expanders can be adjusted for the input beam divergence angle to obtain collimated, divergent or focused beam at the output. They feature non-rotating divergence adjustment by sliding lens design.
