Tesla's stock price drops sharply, Musk shrinks by 500 million U.S. dollars

Author: Zhang Li

Lead: Analysts believe that Tesla's production capacity is difficult to increase, and continued investment in factories and other areas is worrying

According to Forbes website, since Tesla announced its fourth quarter 2016 earnings report on Wednesday, U.S. time, Tesla CEO Musk has already fallen by 500 million U.S. dollars.

Tesla announced its fourth quarter 2016 earnings report on Wednesday afternoon, with revenue growth of 88% year-on-year. However, Tesla's share price fell by 6 points on Thursday due to investor concerns about Tesla's continued burning model and the departure of CFO Jason Wheeler.

The sharp drop in stock price has caused the value of its CEO, Mark Musk, to shrink. His shares account for about one-fourth of the company's shares. From two days from Thursday to Friday, Musk's net value dropped by about 500 million U.S. dollars. According to Forbes's real-time rich list, Musk is currently worth $13.4 billion, ranking 87th in the world.

Lei Fengnet learned that Tesla’s chief financial officer, Jason Wheeler, will leave the company in April. His successor will be Tesla’s first Chief Financial Officer, Deepak Ahuja, who was in August 2008-2015. He served as the Tesla CFO during November.

Some analysts said that prior to this, although shareholders were slightly worried about Tesla’s funding status, they were satisfied with the company’s ambitious plans for the company’s future. As a result, share prices have risen. Now, Tesla’s production capacity is difficult to increase and continues to increase. Investment in factories and other areas is worrying. Not long ago Tesla factory employees complained about low income and long working hours, and submitted their demands through the union. This incident is not good news for Tesla's investors.

WDM Splitter

WDM (Wavelength Division Multiplexing) combines two or more optical carrier signals of different wavelengths (carrying various information) at the transmitting end through a multiplexer (also known as a multiplexer), and The technology of transmitting in the same optical fiber coupled to the optical line; at the receiving end, the optical carrier of various wavelengths is separated by a demultiplexer (also called a demultiplexer or demultiplexer), and then the optical carrier is The receiver performs further processing to restore the original signal. This technology of simultaneously transmitting two or more optical signals of different wavelengths in the same optical fiber is called wavelength division multiplexing.
Wavelength division multiplexing is a technology that uses multiple lasers to simultaneously send multiple lasers of different wavelengths on a single fiber. Each signal is transmitted in its unique color band after being modulated by data (text, voice, video, etc.). WDM can greatly increase the capacity of the existing fiber optic infrastructure of telephone companies and other operators. Manufacturers have introduced WDM systems, also called DWDM (Dense Wavelength Division Multiplexing) systems. DWDM can support the simultaneous transmission of more than 150 light waves of different wavelengths, and each light wave can reach a data transmission rate of up to 10Gb/s. This system can provide a data transmission rate of more than 1Tb/s on an optical cable that is thinner than a hair.
Optical communication is a way in which light carries signals for transmission. In the field of optical communications, people are accustomed to naming them by wavelength instead of frequency. Therefore, the so-called Wavelength Division Multiplexing (WDM) is essentially frequency division multiplexing. WDM is a system that carries multiple wavelengths (channels) on one optical fiber, and converts one optical fiber into multiple "virtual" fibers. Of course, each virtual fiber works independently on a different wavelength, which greatly improves the transmission capacity of the optical fiber. . Because of the economy and effectiveness of the WDM system technology, it has become the main means of expanding the capacity of the current optical fiber communication network. As a system concept, wavelength division multiplexing technology usually has three multiplexing methods, namely, wavelength division multiplexing with wavelengths of 1 310 nm and 1 550 nm, sparse wavelength division multiplexing (CWDM, Coarse Wavelength Division Multiplexing) and dense wave Division Multiplexing (DWDM, Dense Wavelength Division Multiplexing).

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