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First Lasing in an Infrared Free Electron Laser at RRCAT, Indore


Affiliations
1 Materials and Advanced Accelerator Sciences Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
2 Advanced Lasers and Optics Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
3 Accelerator Magnet Technology Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
4 Design and Manufacturing Technology Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
5 Laser Controls and Instrumentation Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
6 Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
7 Accelerator Control Systems Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
8 Pulsed High Power Microwave Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
9 Radio Frequency Systems Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
10 Ultra-High Vacuum Technology Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
11 Power Converters Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
12 Homi Bhabha National Institute, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
 

An Infrared Free Electron Laser (IR-FEL) designed to operate in the 12.5–50 μm wavelength band is presently in an advanced stage of commissioning at the Raja Ramanna Centre for Advanced Technology (RRCAT), Indore. Here we report results from first experiments on the IR-FEL after installation of its optical cavity, which has resulted in a power output that is ~105 times the expected spontaneous emission power for the beam parameters used in the experiment. The estimated out-coupled peak micro-pulse power during these experiments is ~2 kW. This is the first observed signature of lasing in the IR-FEL, and the first reported lasing in a FEL in India. This communication discusses the development of the IR-FEL, the recent experimental results, and the ongoing efforts to further increase the IR power to the design peak out-coupled power of 2 MW.

Keywords

Beam Parameters, Free Electron Laser, Infrared Power, Undulator.
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  • Cohn, K., Blau, J., Colson, W. B., Ng, J. and Price, M., Free electron lasers in 2015. In Proceedings of Free Electron Laser Conference, Korea, 23–28 August 2015, p. 625.

  • Kumar, V. et al., Design of an infra-red free electron laser at RRCAT. In Proceedings of InPAC, IUAC, New Delhi, 2011.

  • Kumar, A., IRFEL injector simulations. In Proceedings of InPAC 2009, RRCAT, Indore, 2009.

  • Kumar, G. et al., Installation, testing and commissioning of 10 kW pulse RF amplifier system @ 476 MHz using planar triode for IRFEL. In Proceeding of InPAC 2015, TIFR Mumbai, 2015; Tiwari, N. et al., Development and deployment of CW and pulse digital low level RF systems for accelerators at RRCAT. In Proceeding of InPAC 2015, TIFR Mumbai, 2015.

  • Praveen, M. et al., Design and development of low level S-band RF control system for IRFEL injector Linac. In Proceeding of InPAC 2015, TIFR Mumbai, 2015; Shrivastava, P., Status of 24 MW microwave system and LLRF control for IR-FEL linac. RRCAT Newsl., 2016, 29(1).

  • Singh, A. et al., Power supplies for IRFEL beam transport line magnets. In Proceeding of InPAC 2015, TIFR, Mumbai, 2015.

  • Saini, R. S. et al., Electron beam optics design of variable energy beam transport line for a tunable infra-red free electron laser at RRCAT. In Proceedings of InPAC 2011, IUAC, New Delhi, 2011.

  • Enomoto, A. and Dael, A., Technical Report – Lure Anneaux TF.CLIO/88-02 et CERA. 88-97/CLIO, Orsay, France, 19 May 1988.

  • Kailash, R. et al., Development of magnets for infra-red free electron laser project at RRCAT. In Proceeding of InPAC 2015, TIFR Mumbai, 2015.


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  • First Lasing in an Infrared Free Electron Laser at RRCAT, Indore

Abstract Views: 471  |  PDF Views: 129

Authors

K. K. Pant
Materials and Advanced Accelerator Sciences Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Vinit Kumar
Materials and Advanced Accelerator Sciences Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Bhaskar Biswas
Materials and Advanced Accelerator Sciences Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Arvind Kumar
Materials and Advanced Accelerator Sciences Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Shankar Lal
Materials and Advanced Accelerator Sciences Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Sona Chandran
Materials and Advanced Accelerator Sciences Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Saket Kumar Gupta
Materials and Advanced Accelerator Sciences Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Md. Khursheed
Advanced Lasers and Optics Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Pravin Nerpagar
Materials and Advanced Accelerator Sciences Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
A. K. Sarkar
Materials and Advanced Accelerator Sciences Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Ravi Kumar Pandit
Materials and Advanced Accelerator Sciences Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
K. Ruwali
Accelerator Magnet Technology Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
K. Sreeramulu
Accelerator Magnet Technology Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
S. Das
Accelerator Magnet Technology Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
R. S. Shinde
Accelerator Magnet Technology Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
S. Chouksey
Design and Manufacturing Technology Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
J. K. Parate
Design and Manufacturing Technology Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Viraj Bhanage
Laser Controls and Instrumentation Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
P. P. Deshpande
Laser Controls and Instrumentation Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Shradha Tiwari
Laser Controls and Instrumentation Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Mandar Joshi
Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
Lalita Jain
Laser Controls and Instrumentation Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Anand Valecha
Accelerator Control Systems Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Ayukt Pathak
Laser Controls and Instrumentation Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
M. A. Ali
Laser Controls and Instrumentation Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
H. R. Bundel
Laser Controls and Instrumentation Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Purushottam Shrivastava
Pulsed High Power Microwave Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
T. Reghu
Pulsed High Power Microwave Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Umesh Kale
Pulsed High Power Microwave Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Yashwant Wanmode
Pulsed High Power Microwave Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Praveen Mohania
Pulsed High Power Microwave Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Jaikishan Mulchandani
Pulsed High Power Microwave Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Akhil Patel
Pulsed High Power Microwave Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Mahesh Acharya
Pulsed High Power Microwave Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Ashish Mahawar
Pulsed High Power Microwave Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Mahendra Lad
Radio Frequency Systems Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
M. K. Jain
Radio Frequency Systems Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Nitesh Tiwari
Radio Frequency Systems Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Pritam S. Bagduwal
Radio Frequency Systems Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
V. G. Sathe
Ultra-High Vacuum Technology Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Sujata Joshi
Ultra-High Vacuum Technology Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Ram Shiroman
Ultra-High Vacuum Technology Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
A. S. Yadav
Ultra-High Vacuum Technology Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Randhir Kumar
Ultra-High Vacuum Technology Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Alok Singh
Power Converters Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Vineet K. Dwivedi
Power Converters Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
Mangesh Borage
Homi Bhabha National Institute, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
S. R. Tiwari
Power Converters Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India

Abstract


An Infrared Free Electron Laser (IR-FEL) designed to operate in the 12.5–50 μm wavelength band is presently in an advanced stage of commissioning at the Raja Ramanna Centre for Advanced Technology (RRCAT), Indore. Here we report results from first experiments on the IR-FEL after installation of its optical cavity, which has resulted in a power output that is ~105 times the expected spontaneous emission power for the beam parameters used in the experiment. The estimated out-coupled peak micro-pulse power during these experiments is ~2 kW. This is the first observed signature of lasing in the IR-FEL, and the first reported lasing in a FEL in India. This communication discusses the development of the IR-FEL, the recent experimental results, and the ongoing efforts to further increase the IR power to the design peak out-coupled power of 2 MW.

Keywords


Beam Parameters, Free Electron Laser, Infrared Power, Undulator.

References





DOI: https://doi.org/10.18520/cs%2Fv114%2Fi02%2F367-373