Text this: Wavelength division multiplexed passive optical networks with colorless light sources

  _  _    _    _     ______     ___     _    _   
 | \| || | || | ||  /_____//   / _ \\  | |  | || 
 |  ' || | || | ||  `____ `   / //\ \\ | |/\| || 
 | .  || | \\_/ ||  /___//   |  ___  |||  /\  || 
 |_|\_||  \____//   `__ `    |_||  |_|||_// \_|| 
 `-` -`    `---`    /_//     `-`   `-` `-`   `-` 
                    `-`