Exhibit 12.01

Statement of Computation of Ratio of Earnings to Fixed Charges

	Year Ended October 31,															Quarter Ended January 31,
	(in thousands, except ratio)															(in thousands, except ratio)
	2001			2002			2003			2004			2005			2006
Pre-tax loss from continuing operations	$	(1,706,729	)	$	(1,486,764	)	$	(385,261	)	$	(788,343	)	$	(434,379	)	$	(5,992	)
Fixed Charges:
Interest expense		30,591			45,339			36,331			26,813			25,430			6,053
Portion of rental expense representative of interest factor		6,435			8,154			5,468			5,376			3,828			849
Total Fixed Charges		37,026			53,493			41,799			32,189			29,258			6,902
Pre-tax loss from continuing operations plus fixed charges		(1,669,703	)		(1,433,271	)		(343,462	)		(756,154	)		(405,121	)		910
Ratio of earnings to fixed charges		—			—			—			—			—			—
Earning deficiency	$	1,706,729		$	1,486,764		$	385,261		$	788,343		$	434,379		$	5,992

     For the years ended October 31, 2001, 2002, 2003, 2004 and 2005, and the fiscal quarter ended January 31, 2006, earnings are inadequate to cover fixed charges and the dollar amount of coverage deficiency is disclosed in the above table, in thousands.

     These computations include Ciena Corporation and its consolidated subsidiaries. For purposes of calculating the ratio of earnings to fixed charges, earnings consist of income (loss) before provision for income taxes, plus fixed charges. Fixed charges include interest expense on debt and the portion of rental expense under operating leases that Ciena Corporation deems to be representative of the interest factor.