{"product_id":"800nm-chirped-mirror-250fs-1","title":"800nm Chirped Mirror HD116-38.1-12.7","description":"\u003cdiv\u003e\n  \u003ch3\u003eOverview\u003c\/h3\u003e\n  \u003cp\u003eThe \u003cstrong\u003e800nm Chirped Mirror -250fs²\u003c\/strong\u003e (Ultrafast Innovations HD116, 785nm center wavelength) delivers mid-range negative group delay dispersion (GDD) of -250 fs² per bounce across the 700–870 nm spectral range. This GDD value positions the mirror ideally for external compressor stages in Ti:Sapphire chirped pulse amplification (CPA) systems and multi-pass dispersion management where moderate GDD compensation per bounce is required without excessively long optical path lengths.\u003c\/p\u003e\n  \u003cp\u003eWith -250 fs²\/bounce, this \u003cstrong\u003e785nm chirped mirror\u003c\/strong\u003e enables practical \u003cstrong\u003eGDD compensation\u003c\/strong\u003e architectures: compensating 6000 fs² of positive dispersion requires approximately 24 bounces, balancing compactness with beam quality preservation. The 700–870 nm bandwidth fully encompasses Ti:Sapphire gain spectra and OPA signal wavelengths, making it compatible with both oscillator and amplifier systems requiring precise group velocity dispersion (GVD) control.\u003c\/p\u003e\n  \n  \u003ch3\u003eApplications\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTi:Sapphire CPA external compressors\u003c\/strong\u003e – mid-range dispersion compensation between stretcher and target pulse duration\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMulti-pass femtosecond pulse compression\u003c\/strong\u003e – staged GDD compensation in 800nm amplifier chains with 10–24 bounce configurations\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOPCPA pre-compression\u003c\/strong\u003e – signal beam dispersion management for optical parametric CPA systems at 700–870 nm\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOscillator dispersion fine-tuning\u003c\/strong\u003e – intracavity or external GDD trimming for Ti:Sapphire mode-locked lasers\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eConstruction \u0026amp; Performance\u003c\/h3\u003e\n  \u003cp\u003eManufactured on 38.1 mm diameter, 12.7 mm thick UVFS substrate with ion beam sputtering (IBS) deposited dielectric coating. Reflectance exceeds 99% across the entire 700–870 nm range at 7° angle of incidence (AOI) for S-polarization. The HD116 design maintains -250 fs² GDD tolerance with minimal higher-order dispersion oscillations. Laser-induced damage threshold (LIDT) of 0.2 J\/cm² accommodates femtosecond pulse energies typical in CPA and OPCPA systems. The 7° AOI minimizes astigmatism while enabling compact folded compressor geometries.\u003c\/p\u003e\n  \n  \u003ch3\u003eStorage \u0026amp; Handling\u003c\/h3\u003e\n  \u003cp\u003eOperate at 25 °C, 40–60% RH. Clean only with \u0026gt;99% optical-grade ethanol and lint-free lens tissue using single-pass drag method. Avoid abrasive cloths and water.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Ultrafast Innovations","offers":[{"title":"Default Title","offer_id":47948106268826,"sku":"HD116-38.1-12.7","price":828.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/800nm-chirped-mirror-render_9a0d6955-04b0-43e5-866c-38e5357c6115.png?v=1777648152","url":"https:\/\/waveqvanta.com\/products\/800nm-chirped-mirror-250fs-1","provider":"WaveQuanta","version":"1.0","type":"link"}