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Illuminating the puja mandaps, and massive structures as innovative themes for the pandals have also hiked up the budget. We are installing more CCTVs, engaging more security personnel, which will add to the expenses,” said Deepak Kumar Jena, secretary of Old Station Bazaar Durga Puja Committee.

So, the administration has asked us to keep larger free space and better arrangements for security and crowd management. “This year, we are expecting huge crowds. Puja mandaps said a major chunk of the budget will be spent on security and crowd management. The puja committees said the idol makers, who did not get much work in the last two years have also increased their remunerations, while materials used for decoration has increased manifold leading to a jump in the budget.

The budget of puja committees in the city has increased by 50% to 100%. “We have doubled the budget this year compared to pre-covid Durga puja,” he added. Due to high transportation costs, our budget has also gone up,” said Sach Nandan Nayak, secretary of Saheed Nagar Durga Puja Committee. Besides, the prices of everything have skyrocketed in the last two years, mainly that of fuel which has led to rise in prices of everything. “We are going to celebrate Durga puja after a gap of two years, so the expectations of people have also gone up. Starting from innovative themes to bigger idols, silver tableaus, ornaments for the goddess, interiors of the pandals, security and crowd management, prasad preparation and cultural events, the puja mandaps have scaled up the celebrations in every possible way, leading to a steep rise in the budget.

The small optical receiver integrates functions for space optical communication and laser angle-of-arrival detection in a photodetector, which is believed to be a world's first.Bhubaneswar: After two years of muted celebrations, Durga puja mandaps in the city have decided to loosen their purse strings to make the celebrations grand and splendid this year.

The dedicated sensor for detecting beam directions in conventional systems is no longer necessary.

The photoelectric converter, which receives laser light and converts it into electrical signals, is divided into four segments and the direction of received laser beams is detected with high precision by comparing the output signal intensity of each segmented element.

1)World's first optical receiver that integrates spatial laser acquisition in the photodetector.

Installations also are possible in areas where normal infrastructure is not available, such as disaster zones, developing countries or remote areas, thereby expanding the use of wireless communications in a variety of situations. Since the wavelength is much shorter, smaller antennas can be used in compact communication units that can be installed in locations difficult for optical fiber, such as between buildings. The result is a downsized optical receiver that enables space optical communication with 10 times the speed, capacity and distance of radio-wave communication. Mitsubishi Electric has now developed an optical receiver that solves this problem by integrating functions to detect both four phase changes of laser light and beam direction.

But space optical communications use very narrow laser beams, about 1/1000th of that of radio waves, so the challenge has been how to precisely align laser beams with satellites traveling at high speed. Large-capacity, high-speed space optical communications that do not require optical fiber are thus required to support fast and accurate damage assessments following disasters. High-resolution satellite imagery is used to assess damage caused by disasters, but since such images are transmitted via radio waves it has been difficult to transmit high-resolution images in real time due to limitations in data capacity and the size of satellite antennas. TOKYO, Mitsubishi Electric Corporation (TOKYO: 6503) announced today that it has developed the prototype of what is believed to be the world's first * optical receiver for use in laser communication terminals (LCTs), that integrates space optical communication using laser beams and a function to detect the direction of received beams in the 1.5-μm band, a general-purposeband used for terrestrial optical fiber communications and other applications.

Concept of free-space optical communications network

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