Mumbai Activities: Photonics

Design and Engineering Centre for Integrated Optics (DECIO)
At wavelengths 1310 & 1550 nm

• Power splitters and combiner
  1x2, 1x4, 1x8 on Glass substrate
• Directional Couplers
• Optical Switches
  2x2, 4x4 on Lithium Niobate substrate

• High Speed Integrated Optic Intensity Modulator is developed on Lithium Niobate substrate for 1550 nm operation. It offers no chirp & high speed (upto 2.4 Gbps) ,Vpi Switching voltage under 5 V and Extinction Ratio better than 20 dB

• Packaging of opto-electronic device chips essential to develop a marketable products

  FPPD has infrastructure for optical fiber-device alignment, electrical bonding, hermetic sealing of package, electrical & optical device testing, environmental and device reliability testing etc.

   

Terahertz (THz) transmission is the extension of today’s wireless technology for communication networks, which allow high-speed information transmission between PC to Mobile/Electronic Devices; building wireless LAN of new generation; wireless systems for space applications and beyond 5G.

• Visible and Infra Red (IR) Laser based Spectroscopy and Imaging

  Visible laser (Red, Green), Near IR (1310, 1550 nm) and Quantum Cascade Laser(QCL) based IR spectroscopy lab is established for trace gas  and liquid sensing.

   


 

 

 

 

 

 

The Multipass gas cell is used for Laser absorption spectroscopy and various toxic gases present in the atmosphere such as Carbon Monoxide, Ammonia etc were detected at ppm level. For Photoacoustic technique, a Tuning fork based gas cell has been developed for detection of trace toxic gases.

• Development of a High Speed Compact OCT Imaging System

Non Invasive Spectral Domain based Optical Coherence Tomography (SD-OCT) based imaging system is being developed for posterior imaging of retina of human eye at 840 nm which can also help in guiding the treatment administered by Vitreo-Retinal surgeons for eye ailments like Glaucoma, Age Related Macular degeneration and Diabetic Retinopathy.