Universal photoelectric launched TCA-1000 amplified spontaneous emission intelligent light source

On March 31, 2011, [ Valiant ] OFweek communication international compilation: American general photoelectric Limited ( General Photonics ) officially launched TCA-1000 amplified spontaneous emission ( ASE ) adjustable intelligent light source ( SmartLight Tunable ), in ITU system network, the source of each channel 's frequency is 50GHz. The full polarization light source FWHM bandwidth of 0.3 nm. It is reported, the TCA-1000 intelligent light source is designed for 40Gbps optical network signal polarization mode dispersion ( PMD ) effect test, PMD test, PMD compensator on-line assessment, WDM channel test, 40G test and 40G test system and the development of optical devices.

TCA-1000 adjustable intelligent light with polarization rotator, the rotator with general photoelectric Limited PMDPro PMD-1000 polarization optimization source used for monitoring or measurement, communication in the WDM channel PMD parameters, but also can be used to test the PMD compensator of dispersion compensation. Other applications include : measurement of the mean spectrum range of parameters, such as each WDM channel 40Gbps signal ( IL ) insertion loss, polarization dependent loss and return loss ( PDL ) ( RL ). The TCA-1000 polarization rotator with 0.2 ms speed, angle of 45 degrees rotation to change the output polarization state.

General Photonics Corporation president, Steve Yao said: "the PMD parameters influencing optical fiber communication network performance is not a new topic, now, optical network rate to 10Gbps, PMD parameters remain. We launched a TCA-1000 adjustable intelligent light source is mainly used by our PMDPro polarization optimization source supporting the use of, a more accurate test of communication, frequency bands for the 50GHz range of PMD. This will provide network service providers to improve its network business ability to bring the gospel. "

The TCA-1000 device working band at C band. The output wavelength can be adjusted through the front panel keyboard, but also through the backplane communication interfaces regulation. Parameter adjustment time is less than 10 seconds. In addition, the device is also equipped with standard RS-232 interface, USB interface, an Ethernet interface and GPIB interface controller. Maximum output power of 16dBm, power attenuation range of 20dB. Through its built-in attenuator regulator output power. Short term regulation of power, the power stability time of 1 minutes, power stable and accurate to 0.004dB, long-term regulation of power

Universal photoelectric launched TCA-1000 amplified spontaneous emission intelligent light source

Submarine cable: should not be missing the national industry

Submarine optical cable as a contemporary international communication means, bearing includes Internet business, voice services, as well as Multi-National Corporation green business, more than 90% of international communication business, and domestic enterprises in the increasingly important field is not competitive, which requires the industry chain vigilance.

Recently, Lu Xiangdong of vice president of China Mobile Communication Industry Development Forum said: mobile now has the international Internet exit number and mobile enterprise scale is not matched, in order to make up the shortage, China Mobile has taken sharing strategy, " sharpened head and other operators to build the international submarine cable. "

Submarine optical cable as a contemporary international communication means, bearing includes Internet business, voice services, as well as Multi-National Corporation green business, more than 90% of international communication business, is the main carrier of international informatization development.

At present, mobile has less than 50G submarine bandwidth, but the telecommunication has 660G, China Unicom 357G, in the overseas POP point, moving only 2, and Telecom has 13, China Unicom has 10. Mobile Internet export has begun to restrict the development of the internet.

Submarine cable construction lack of discourse right

China Mobile Design Institute of cable deputy director Gao Junshi introduction, China Mobile and there are currently no international telecommunications submarine cable ( hereinafter referred to as " cable " ) resources, existing not to 50G cable broadband belongs entirely to lease.

The lease of the international submarine cable is 60 × 10G system, mobile hired several bands, and the international submarine cable the rental fee is astronomical: each band according to the transmission distance is different, annual rent from tens of millions to billions of yuan ranging. A year 's rent enough mobile participation in the construction of an international submarine cable, but also can greatly save moving expenses. This is a mobile " dying will and other operators to build the international submarine cable " most real power.

In April this year, mobile announced together China Telecom, Japan KDDI operators together to build a new submarine cable, the project total investment of at least $45000000, will be connected regions of Japan, China, Southeast Asia developed area of Taiwan city. Is expected to be completed in 2013.

In theory, a mobile participation in the project, the domestic enterprise may be somewhat benefit. However this is not the case, this project, regardless of is the submarine cable production, or submarine cable construction, even landing section engineering but also by his country construction enterprises, the enterprise of our country did not participate in the nomination, domestic enterprises are other building members veto, reason is no application case.

In fact, in February this year ZTT has worked with the United States a Alaska telephone company submarine cable project signing, became the first successful in developing countries into the international submarine cable market enterprises; at the same time, Huawei Company also repeatedly awarded the international submarine cable submarine cable construction engineering. But the two bid for short distance without relay transit project, bid project is 160 km in length, in the system of relay amplifier; Huawei does not currently have provided the submarine cable repeater amplifier device capabilities, the device is currently in the testing phase.

Some short distance without relay engineering experience, can give the domestic enterprise to provide enough speech to counterpoise, the face of international project, the domestic enterprise present can only slide.

Mature industry chain

" The domestic cable market is too small, the annual demand of only a few hundred kilometers, " the domestic cable field professor of engineers Tao Xinhua is introduced. He said, " the domestic market mostly are military application, hundreds of kilometres of demand is very difficult to support the manufacturer's survival, so the current domestic only 2 ～3 production of cable manufacturers, while providing submarine communications equipment, with the construction of ability is still only a huawei. "

But in some European and American, Japanese enterprise, with Al Carter 's as an example, the submarine cable R & D, production, testing, promotion, and submarine communication 10G, 40G equipment, including construction team have everything that one expects to find. In contrast, our country still has no special submarine cable project research institute, the standard is put forward early Beihai fleet submarine cable construction specifications, manufacturers are unable to provide integrated system.

Tao Xinhua said: " China's optical fiber and cable industry is strong, but the submarine cable industry is very weak. Relative to the terrestrial cable, submarine cable is the main technique index is submarine cable deep-sea water tightness and deep mechanical strength. These two points, our industries, technical indicators or capacity, could not enter the international market. "

Operator Jicai outbreak of indoor optical fiber and cable demand price doubled

This year with FTTH operators become the focus of the work, each optical fiber is rapidly advancing, the operator Jicai indoor cable demand eruption. The industry is expected this year, indoor cable market scale is expected to double, to achieve 3000000 -400 million kilometers of fiber optic cable core, become the new profit growth point.

In China Telecom in the tender, indoor cable is attached to the optical fiber, the tender price nearly doubled relative to conventional products.

Indoor cable is mainly composed of G657 fiber, G652 fiber relative to less than 80 yuan / core kilometers for price, applied to the indoor cable G.657 fiber price reached 120-130 yuan / core km. It is reported that due to indoor cable in bending and other aspects of the technology content is high, the wool interest rate is higher than other conventional products 3-5 percentage points.

Photoelectric in China Telecom in the collection optical fiber (G.657A2) 313000 -core km; technology in China Telecom Jicai bid fiber (G.657D, G.652D ) a total of 2173400 core km.

According to the beginning of this year China Telecom released the " China city planning network broadband. " in 2011, China Telecom will strive for new FTTH ( fiber to the home ) the user 30000000, accumulative total coverage of about 40000000 families; the South City ( including county ) to achieve full coverage of 8M bandwidth, 20M coverage rate reached 70%; the eastern and Midwest city the capital city of 20M coverage rate of more than 80%. To 2013, South City ( including county ) of all family customers can provide 20M access, FTTH coverage to 80000000 the total number of households.

As of the end of year 7, Shanghai Telecom " city " coverage of more than 3000000 households, " city " users exceeded 800000, including 10M+10M high bandwidth users has reached 400000 households. In addition, China Unicom also increased FTTH construction.

Shanghai Telecom senior manager Hua Ruiqiang told the reporters, along with the FTTH large-scale advance, its construction cost is also reduced, and become the main push operator optical network construction mode. Taking Shanghai as an example, in Shanghai this year, " wisdom city " overall construction, FTTH overfulfil goal of "no problem ".

As predicted, by the end of 2010, domestic FTTH user of about 10000000 households. 2010-2013, China FTTH net user number is estimated to be 70000000 households, each household according to business 50% to calculate the permeability of the cost is about 1150 yuan, the year 2011 according to the new 30000000 computing, FTTH construction pull telecommunications investment about 34500000000 yuan.

Indoor fiber optic cable will become the new profit growth point. According to the photoelectric concerns personage introduction, last year the company indoor cable production capacity is about 100000 kilometres around the core, and this year will expand production to 600000 core kilometers, sales are expected to reach 200000000 yuan, than last year nearly doubled. " Because the indoor cable in bending and other aspects of the technology content is high, the wool interest rate is higher than other conventional products 3-5 percentage points. " Balefire communication expresses about the personage, the company last year, indoor cable sales of about 100000000 yuan, this year is expected to reach 300000000 yuan.