AR2S-SWIR-01 Anti-Reflective (AR) Coating (Both Sides)
Broadband multi-layer (BBAR) anti-reflection coating minimising surface reflections across short-wave ir wavelengths (900 – 1700 nm) for maximum throughput and ghost-free optical performance.
- Coating type: Broadband multi-layer (BBAR) (double-side coated)
- Design waveband: 900 – 1700 nm
- Average reflectance (Ravg): < 0.16 % per surface
- Peak reflectance: < 0.48 % (worst case in waveband)
- Resulting transmittance: ≥ 99.7 % T (both surfaces coated)
- AOI: 0° (normal incidence); performance degrades gradually at higher angles
- Substrate: Borofloat® or customer-specified glass
- Construction: Ion-assisted hard-oxide; 5 – 450 mm shapes, 0.21 – 3.8 mm thick
- Custom options: Wavelength range tuning, V-coat for single wavelength, custom substrates, rapid prototypes
Learn more
AR2S-SWIR-01 AR delivers Coating type Broadband multi-layer (BBAR) (double-side coated), Design waveband 900 – 1700 nm, and Average reflectance (Ravg) < 0.16 % per surface.
The hard-oxide coating is built for repeated handling, heat, and cleaning.
Best suited for:
SWIR imaging systems operating in the 900–1700 nm band — including InGaAs camera optics, moisture detection sensors, and semiconductor inspection equipment — where surface reflections reduce already-limited SWIR signal levels
Description
AR2S-SWIR-01 is a double-side anti-reflection coating targeting the short-wave infrared (SWIR) telecom C-band from 1505 nm to 1605 nm. Average transmission across this window exceeds 99.7 %, with peak values reaching 99.9 % near 1655 nm. Across the entire measured range of 1400 nm to 1800 nm, transmission never drops below 99 %, producing an extraordinarily flat, near-lossless optical surface. This level of performance makes AR2S-SWIR-01 the coating of choice for high-sensitivity SWIR imaging and telecom-band optics where every fraction of a percent matters.
Key Advantages
- Tavg > 99.7 % across 1505-1605 nm - delivers virtually zero reflection loss in the telecom C-band, maximizing signal strength in fibre-optic and free-space communication systems.
- T > 99 % across the full 1400-1800 nm measurement range - extends high performance well beyond the specified band, covering the S-, C-, and L-telecom bands simultaneously.
- Ultra-flat spectral response - ripple constrained to < 0.5 % across the working range eliminates channel-dependent loss variation in wavelength-division multiplexed (WDM) systems.
- Hard-oxide durability - ion-assisted deposition creates a robust coating that resists heat, humidity, and repeated cleaning.
- Custom formats available - round, square, or free-form blanks from 5 mm to 450 mm, thickness 0.21-3.8 mm, on Borofloat®, soda-lime, Schott D263 T, or Corning Eagle XG substrates.
Typical Applications
- Telecom fibre-optic systems - provides near-zero insertion loss for C-band (1530-1565 nm) components including multiplexers, demultiplexers, and optical switches.
- SWIR imaging and InGaAs cameras - maximizes photon collection for InGaAs sensors operating in the 1000-1700 nm range, critical for semiconductor wafer inspection and moisture detection.
- Free-space optical communication - minimizes surface losses on transmit and receive optics for 1550 nm laser links over atmospheric paths.
- Gas sensing and environmental monitoring - supports absorption spectroscopy of CO2 (1570 nm), H2O, and hydrocarbon overtone bands in the SWIR region.
- Defence and security imaging - enables high-throughput SWIR windows for see-through-haze, night-glow, and covert illumination imaging.
Need a prototype in days or volume coatings next quarter? KUPO Optics can coat, dice, and ship AR2S-SWIR-01 to your exact size, shape, and substrate specifications.
FAQ
AR2S-SWIR-01 FAQ
What is AR2S-SWIR-01 and what is it used for?
AR2S-SWIR-01 is an Anti-Reflective optical product. Broadband multi-layer (BBAR) anti-reflection coating minimising surface reflections across short-wave ir wavelengths (900 – 1700 nm) for maximum throughput and ghost-free optical performance. Common uses include SWIR imaging systems operating in the 900–1700 nm band — including InGaAs camera optics, moisture detection sensors, and semiconductor inspection equipment — where surface reflections reduce already-limited SWIR signal levels.
What are the key optical specs of AR2S-SWIR-01?
Key published specs for AR2S-SWIR-01 include Coating type: Broadband multi-layer (BBAR) (double-side coated); Design waveband: 900 – 1700 nm; Average reflectance (Ravg): < 0.16 % per surface; Peak reflectance: < 0.48 % (worst case in waveband); Resulting transmittance: ≥ 99.7 % T (both surfaces coated).
What applications is AR2S-SWIR-01 best suited for?
KUPO lists the best-suited applications as SWIR imaging systems operating in the 900–1700 nm band — including InGaAs camera optics, moisture detection sensors, and semiconductor inspection equipment — where surface reflections reduce already-limited SWIR signal levels.
Can AR2S-SWIR-01 be customized for size, substrate, or coating requirements?
KUPO lists the construction for AR2S-SWIR-01 as Ion-assisted hard-oxide; 5 – 450 mm shapes, 0.21 – 3.8 mm thick. Published custom options include Wavelength range tuning, V-coat for single wavelength, custom substrates, rapid prototypes.
What should I know about angle of incidence and durability for AR2S-SWIR-01?
The published angle of incidence for AR2S-SWIR-01 is 0° (normal incidence); performance degrades gradually at higher angles. The hard-oxide coating is built for repeated handling, heat, and cleaning.
