Femtosecond laser inscription of Bragg grating waveguides in bulk diamond.
نویسندگان
چکیده
Femtosecond laser writing is applied to form Bragg grating waveguides in the diamond bulk. Type II waveguides are integrated with a single pulse point-by-point periodic laser modification positioned toward the edge of the waveguide core. These photonic devices, operating in the telecommunications band, allow for simultaneous optical waveguiding and narrowband reflection from a fourth-order grating. This fabrication technology opens the way toward advanced 3D photonic networks in diamond for a range of applications.
منابع مشابه
<Edited by Milan Brandt and Erol Harvey> POINT BY POINT FEMTOSECOND LASER INSCRIPTION OF FIBRE AND WAVEGUIDE BRAGG GRATINGS FOR PHOTONIC DEVICE FABRICATION
We present a flexible and rapid method for the production of Bragg gratings in a range of optical waveguides such as optical fibres and direct laser-written waveguides in bulk media. Using a low repetition rate (1 kHz) femtosecond laser, Bragg grating structures can be written in a point-by-point fashion (where each laser pulse inscribes one period of the Bragg structure) in both passive and ac...
متن کاملDirect laser written waveguide-Bragg gratings in bulk fused silica.
Optical waveguides that incorporate Bragg gratings have been written in bulk fused silica by using the femtosecond laser direct-write method and without the need for lithography or ion-beam techniques. A single manufacturing process is used to create waveguide-Bragg grating reflectors for operation in the C band.
متن کاملPoint-by-Point Femtosecond Laser Inscription of Bragg Gratings In High NA (>0.4) Germania-Doped Optical Fibre
Using point-by-point femtosecond laser inscription, a fibre Bragg grating (FBG) was written in a high NA germania-doped fibre. Thermal tests demonstrated that the FBG could withstand temperatures up to 800°C without significant effects on reflectivity. OCIS codes: (060.3735) Fibre Bragg gratings; (320.2250) Femtosecond phenomena
متن کاملLow-energy distortion-free femtosecond pulse laser inscription in coated, free-standing optical fiber
Low-energy, distortion-free femtosecond pulse laser inscription in coated freestanding fiber is demonstrated for the first time. Methodology features radial plane beamshaping to achieve optimal focusing and spot-like inscription within the fiber. Strong, firstorder fiber Bragg grating is achieved in coated single-mode fiber using only 50nJ pulse energy.
متن کاملPoint-by-point inscription of first-order fiber Bragg grating for C-band applications.
The influence of the fiber geometry on the point-by-point inscription of fiber Bragg gratings using a femtosecond laser is highlighted. Fiber Bragg gratings with high spectral quality and strong first-order Bragg resonances within the C-band are achieved by optimizing the inscription process. Large birefringence (1.2x10(-4)) and high degree of polarization-dependent index modulation are observe...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Optics letters
دوره 42 17 شماره
صفحات -
تاریخ انتشار 2017