Erbium-doped glasses or crystals can be used as optical amplification media, where erbium ( III ) ions are optically pumped at around 980 nm or 1480 nm and then radiate light at 1530 nm in stimulated emission.

EDFAs have two commonly-used pumping bands – 980 nm and 1480 nm.

A combination of 980 nm and 1480 nm pumping is generally utilised in amplifiers.

* 1480 nm – InGaAsP pump for optical amplifiers

The signal power is amplified by pumping the erbium-doped fibre ( EDF ) with 1480 nm laser light which is attached through an optical coupler.

The erbium-doped sections are situated within the cable span and are pumped by 1480 nm pump lasers which are based at the station.

The subsequent band edges are ( in Hz ) 20, 100, 200, 300, 400, 510, 630, 770, 920, 1080, 1270, 1480, 1720, 2000, 2320, 2700, 3150, 3700, 4400, 5300, 6400, 7700, 9500, 12000, 15500 ; the centers are 50, 150, 250, 350, 450, 570, 700, 840, 1000, 1170, 1370, 1600, 1850, 2150, 2500, 2900, 3400, 4000, 4800, 5800, 7000, 8500, 10500, 13500.

* WGVU ( AM ), broadcasting at 1480 kHz on the AM band.

History and legend has given René the title " Good King René of Provence ", though he only lived in Provence in the last ten years of his life, from 1470 to 1480, and his political policies of territorial expansion were costly and unsuccessful.

According to the United States Census Bureau, the city has a total area of, all land and an elevation of 1480 ft.

The nave and tower were built about 1480 and by 1550 the sanctuary has taken its present form.

He commissioned an important manuscript of about 1480, the Louthe Hours, now in Louvain, which has a miniature of him kneeling in armour with his guardian angel.

His birth date has been given as early as 1480 and as late as 1495, but recent scholarship has tended to narrow the range to the late 1480s.

Built in 1480 by the Bishop of Norwich, The Swan has a long history ; both the restaurant and bars reflect Hoxne's ecclesiastical past, with ornate ceiling beams and wide-planked floors.

Jan Sallaert, who became a master in Ghent in 1480, has also been suggested.

" The WMAX calls were originally granted for a station in Ann Arbor in 1922, and now belong to a Catholic-formatted AM station in Bay City, Michigan ( in addition, 96. 1 FM licensed to Holland, Michigan and serving the Grand Rapids market operates as WMAX-FM, but it has no relationship to 1480 AM ).

This was part of a broader scheme of urbanization carried out under Sixtus IV, who swept the long-established markets from the Campidoglio in 1477 and decreed in a bull of 1480 the widening of streets and the first post-Roman paving, the removal of porticoes and other post-classical impediments to free public passage.

Annunciation ( Leonardo ) | Annunciation ( 1475 – 1480 )— Uffizi, is thought to be Leonardo's earliest complete work.

is: 1480

* The Cathedral of St. Nicholas of Bari, built in the 13th century and enlarged in Catalan Gothic style from 1480 ; there is a monument to the Duca di Moriana inside.

The origin of Faust's name and persona remains unclear ; though it is widely assumed to be based on the figure of Dr. Johann Georg Faust ( c. 1480 – 1540 ), a magician and alchemist probably from Knittlingen, Württemberg, who obtained a degree in divinity from Heidelberg University in 1509.

Upper town: ( oldest part, remains from the 13th and 16th centuries, town walls still standing ), old town hall ( 1662 ); the Martinsturm is considered the landmark of Bregenz ( late Roman core, chapel with frescos from 1362, from 1599 to 1601 a storey was added, biggest Baroque bulb-shaped steeple in Central Europe, houses the Museum of Military History ); Gothic parish church of St. Gall ( the Roman-Romanesque foundations date from before 1380, rebuilt around 1480, from 1737 to 1938 altered by F. A.

Purandara Dasa ( 1480 – 1564 ) is renowned as the father ( Pitamaha ) of Carnatic music for formulating the basic lessons of, and his contributions to Carnatic music.

In 1480, Rukmini devi's servant messenger is believed to have appeared in this world as Vadiraja Tiirtha ( 1480 – 1600 ), the greatest saint in the Madhva tradition.

Memling did indeed paint for the Hospitallers in 1479 and 1480 and it is likely that he was known to the patrons of St John prior to the Battle of Nancy.

The masterpiece of Memling's later years, the Shrine of St Ursula in the museum of the hospital of Bruges, is fairly supposed to have been ordered and finished in 1480.

Garamond is the name given to a group of old-style serif typefaces named after the punch-cutter Claude Garamond ( c. 1480 – 1561 ).

Total atmospheric mass is 5. 1480 × 10 < sup > 18 </ sup > kg ( 1. 135 × 10 < sup > 19 </ sup > lb ), about 2. 5 % less than would be inferred from the average sea level pressure and the Earth's area of 51007. 2 megahectares, this portion being displaced by the Earth's mountainous terrain.

According to the American National Center for Atmospheric Research, " The total mean mass of the atmosphere is 5. 1480 kg with an annual range due to water vapor of 1. 2 or 1. 5 kg depending on whether surface pressure or water vapor data are used ; somewhat smaller than the previous estimate.

Tyagaraja ( 1759 – 1847 ), Muthuswami Dikshitar ( 1776 – 1827 ) and Syama Sastri ( 1762 – 1827 ) are known as the Trinity of Carnatic music, while Purandara Dasa ( 1480 – 1564 ) is the father of Carnatic music.

The ryū itself gives 1447 as the year it was founded, but some scholars claim circa 1480 is more historically accurate.

He is believed to have received the Buddhist name from the Rinzai Zen priest Dairin Sōtō ( 1480 – 1568 ) of Nanshūji temple in Sakai.

" The date is about 1480.

The present entrance arch to the porch was added in the 15th century, the base of the font is from the same century and the Perpendicular Gothic window in the south wall of the south aisle was added in about 1480.

The White Hart in Brentwood is the oldest pub in the town, dating back to before 1480.

Despite the competition from the Landsknechts, and imitation by other armies ( most notably the Spanish, which adopted pike-handling as one element of its tercios ), the Swiss fighting reputation reached its zenith between 1480 and 1525, and indeed the Battle of Novara, fought by Swiss mercenaries, is seen by some as the perfect Swiss battle.

The vessel is a symbolic caravel of the type used between 1480 and 1500.

" There is no such person to be found in the pedigree of the Berners family, but there is a gap in the records of the priory of Sopwell between 1430 and 1480.

22 May 1458 ), generally known by his courtesy title of Earl of Stafford was the son of Humphrey Stafford, 1st Duke of Buckingham and Anne Neville ( d 1480 ).

The four suits now used in most of the world — spades, hearts, diamonds, and clubs — originated in France in about 1480.

Printing-presses were used from about 1480 for European prints and block-books, and before that for woodcut book illustrations.

It was completed by the Papal governor Lorenzo Zane in 1480, and was used by Cesare Borgia as jail for Caterina Sforza.

In this period it was occasionally used at the end of a word, a practice which quickly died out but was occasionally revived in Italian printing between about 1465 and 1480.

In the crypt: a twelfth century floor mosaic ; Saint Columbanus ' marble sarcophagus made by Giovanni de Patriarchi ( 1480 ); two marble pluteos used as tombstones of Saint Attala and Saint Bertulf ; and a beautiful twelfth century wrought iron gate.

* WGVU ( AM ), a radio station ( 1480 AM ) licensed to Kentwood, Michigan, United States, which used the call sign WMAX from the 1950s until July 1992

The station broadcast on the frequency of 1480 kHz, which was well outside the range of frequencies used by the New Zealand Broadcasting Corporation.

From circa 1956-1986, the WMAX calls were used by AM 1480 in Grand Rapids.

Later, printing-presses were used ( from about 1480 ).

Afterward the station played mostly middle of the road and adult contemporary music ( and briefly used the WAFT calls for a time in the late 1960s ), although WMAX did briefly return to a Top 40-style presentation from about 1972 to 1975 as " GOOD MAX MUSIC 1480.